1. Twenty to thirty year after a mature forest is cleared away, a nearly impenetrable thicket of trees and shrubs develops.
(A) thirty year
(B) is cleared away
(C) nearly
(D) develops

Jawaban yang tepat adalah:
(A) thirty year
– year = countable noun, memiliki bentuk singular dan plural
– thirty = 30, lebih dari 1 -> penanda plural, kita gunakan bentuk plural
– Bentuk yang tepat adalah: thirty years

2. The first national park in world, Yellowstone National Park, was established in 1872.
(A) first
(B) in world
(C) was
(D) in

Jawaban yang tepat adalah:
(B) in world
– world = hanya ada satu, kita gunakan dengan determiner the
– Bentuk yang tepat adalah: in the world

3. Because it does not have a blood supply, the cornea takes their oxygen directly from the air.
(A) because
(B) supply
(C) their
(D) directly

Jawaban yang tepat adalah:
(C) their
– cornea = countable noun, memiliki bentuk singular (cornea) dan plural (corneas)
– Kalimat soal menggunakan bentuk singular (the cornea)
– their = plural possessive determiner, tidak bisa digunakan untuk menggantikan singular noun
– Bentuk yang tepat adalah: its (singular possessive determiner)

4. Magnificent mountains and coastal scenery is British Columbia’s chief tourist attractions.
(A) mountains
(B) coastal
(C) is
(D) chief

Jawaban yang tepat adalah:
(C) is
– ada coordinating conjunction ‘and’
– ‘and’ di kalimat in menghubungkan dua noun ‘magnificent mountains’ dan ‘coastal scenery’
– Meskipun ‘scenery’ adalah uncountable noun dan digunakan dengan singular verb, dengan adanya conjunction and, kalimat memiliki subject plural (lebih dari 1), kita gunakan plural verb
– Bentuk yang tepat adalah: are

5. Scientists at universities are often more involved in theoretical research than in practically research.
(A) universities
(B) often
(C) involved
(D) practically

Jawaban yang tepat adalah:
(D) practically
– ada bentuk comparative adjective ‘more involved’ in … ‘than’ in ….
– comparative adjective membandingkan 2 noun
– noun 1: theoretical research = adjective + noun
– noun 2: practically reserch, practically = adverb, tidak bisa digunakan di depan noun
– Yang bisa digunakan di depan noun: (1) determiner (2) preposition (3) adjective
– Bentuk yang tepat adalah: practical (adjective)

6. John Rosamond Johnson he composed numerous songs, including Lift Every Voice and Sing, for which his brother, James Weldon Johnson, wrote the words.
(A) he composed
(B) songs
(C) including
(D) for which

Jawaban yang tepat adalah:
(A) he composed
– Ada duplikasi subject karena ada noun (John Rosamond Johnson) dan pronoun (he)
– Bentuk yang tepat adalah: composed (tanpa he)

7. Nylon, a synthetic material done from a combination of water, air, and a by-product of coal, was first introduced in 193 8.
(A) done
(B) combination
(C) of coal
(D) introduced

Jawaban yang tepat adalah:
(A) done
– made from = dibuat dari, ini lebih pas untuk konteks kalimat soal
– Bentuk yang tepat adalah: made

8. Ornithology, the study of birds, is one of the major scientific fields in which amateurs play a role in accumulating, researching, and publish data.
(A) major
(B) fields
(C) play
(D) publish

Jawaban yang tepat adalah:
(D) publish
– and = coordinating conjunction
– coordinating conjunction menghubungkan kata/frasa/klausa yang identik secara gramatikal (paralel)
– accumulating = verb ing
– researching = verb ing
– publish = verb 1, tidak paralel dengan elemen yang lain
– Bentuk yang tepat adalah: publishing (verb ing)

9. Animation is a technique for creativity the illusion of life in inanimate things.
(A) technique
(B) creativity
(C) of life
(D) things

Jawaban yang tepat adalah:
(B) creativity
– for = preposition
– preposition hanya bisa diikuti (1) noun (2) verb ing
– creativitity = noun, tapi secara arti tidak cocok karena setelahnya ada noun phrase ‘the illusion of life’
– Bentuk yang tepat adalah: creating (verb ing)

10. The nonviolent protest advocated by Dr. Martin Luther King, Jr., proving highly effective in an age of expanding television news coverage.
(A) by
(B) proving
(C) expanding
(D) coverage

Jawaban yang tepat adalah:
(B) proving
– The nonviolent protest advocated by Dr. Martin Luther King, Jr., = subject
– Kalimat mengindikasikan sesuatu yang terjadi di masa lampau -> Past Simple
– Pola Past Simple: Subject + Verb 2
– Bentuk yang tepat adalah: proved (verb 2)

11. On December 7, 1787, Delaware became a first state to ratify the United States Constitution.
(A) on
(B) became
(C) a
(D) ratify

Jawaban yang tepat adalah:
(C) a
– a digunakan untuk sesuatu yang umum, tidak spesifik
– first state to ratify the United States Constitution = hal spesifik -> kita gunakan determiner ther
– Bentuk yang tepat adalah: the

12. Nutritionists believe what diet affects how one feels physically and emotionally.
(A) nutritionists
(B) what
(C) how
(D) physically

Jawaban yang tepat adalah:
(B) what
– diet affects how one feels physically and emotionally = clause
– Pola: Subject + believe + that + clause eg: I believe that it is true.
– Bentuk yang tepat adalah: that (= bahwa)

13. Mealii Kalama, creator of over 400 Hawaiian quilts, was granted a National Heritage Fellowship in 1985 for herself contributions to folk art.
(A) over
(B) was granted
(C) herself
(D) contributions

Jawaban yang tepat adalah:
(C) herself
– contributions = noun
– herself = possessive pronoun
– pronoun tidak bisa digunakan di depan noun
– Yang bisa digunakan di depan noun: (1) determiner (2) preposition (3) adjective
– Bentuk yang tepat adalah: her (= possessive determiner)

14. A jetty serves to define and deepen a channel, improve navigate, or protect a harbor.
(A) serves
(B) a channel
(C) navigate
(D) a harbor

Jawaban yang tepat adalah:
(C) navigate
– or = coordinating conjunction
– coordinating conjunction menghubungkan kata/frasa/klausa yang identik secara gramatikal (paralel)
– deepen a channel = verb + noun
– protect a harbor = verb + noun
– improve navigate = verb + verb, tidak paralel dengan elemen yang lain
– Bentuk yang tepat adalah: improve navigation (verb + noun)

15. Minoru Yamasaki achieved a reputation as an architect which works departed from the austerity frequently associated with architecture after the Second World War.
(A) which
(B) departed from
(C) frequently
(D) with

Jawaban yang tepat adalah:
(A) which
– an architect = personal subject
– which = relative pronoun untuk non-personal, tidak bisa digunakan untuk orang
– Bentuk yang tepat adalah: who

16. Chemical research provides information that is useful when the textile industry in the development of new fabrics.
(A) provides
(B) when
(C) textile
(D) development

Jawaban yang tepat adalah:
(B) when
– when = conjunction, digunakan untuk clause (Subject + Verb)
– the textile industry in the development of new fabrics = noun phrase -> hanya bisa berfungsi sebagai subject atau object saja
– Kita tidak bisa gunakan when karena klausa yang mengikutinya tidak utuh, tidak ada verb
– Bentuk yang tepat adalah: for (= preposition)
– Kita bisa gunakan preposition sebelum noun

17. Because of its vast tracts of virtually uninhabited northern forest, Canada has one of the lowest population density in the world.
(A) its
(B) virtually
(C) one
(D) density

Jawaban yang tepat adalah:
(D) density
– density = uncountable noun
– ‘one of the’ + plural noun, tidak bisa digunakan dengan uncountable noun

18. Bromyrite crystals have a diamond-like luster and are usually colorless, but they dark to brown when exposed to light.
(A) have
(B) colorless
(C) dark
(D) exposed

Jawaban yang tepat adalah:
(C) dark
– they = subject pronoun
– dark = adjective
– klausa belum utuh karena baru ada subject dan belum ada verb
– Bentuk yang tepat adalah: darken (verb = menjadi gelap)

19. Stars in our universe vary in temperature, color, bright, size, and mass.
(A) stars
(B) in
(C) bright
(D) mass

Jawaban yang tepat adalah:
(C) bright
– and = coordinating conjunction
– coordinating conjunction menghubungkan kata/frasa/klausa yang identik secara gramatikal (paralel)
– temperature = noun
– color = noun
– size = noun
– mass = noun
– bright = adjective, tidak paralel dengan elemen lain
– Bentuk yang tepat adalah: brightness (noun)

20. Ice is less denser than the liquid from which it is formed.
(A) denser
(B) than
(C) from which
(D) it

Jawaban yang tepat adalah:
(A) denser
– denser = comparative adjective = lebih padat
– less = kurang, tidak bisa digunakan dengan comparative adjective
– less + adjective
– Bentuk yang tepat adalah: dense