Jawaban:

16.The dandelion (plant) has a straight, (smoothly), and hollow stem (that) contains a (white), milky juice.

A.plant

B.smoothly

C.that

D.white

17.Of the (much) factors that (contributed) to the (growth) of international tourism in the 1950’ s, (one) of the most important was the advent of jet travel in 1958.

A.much

B.contributed

C.growth

D.one

18.The Canadian (province) of Alberta (it is believed) (to have) some of the (richest oil deposits) in the world.

A.province

B.it is believed

C.to have

D.richest oil deposits

19.Elizabeth Bishop’ s poems (are) frequently (long) and carefully constructed, (uses) (elaborate) rhyme or half-rhymes.

A.are

B.long

C.uses

D.elaborate

20.California (has) more land (under) irrigation (than) any (another) state.

A.has

B.under

C.than

D.another

21.Thomas Moran’ s magnificent, (colorful) paintings (onto) Wyoming landscapes captured the spirit (of the) western wilderness in the (late) nineteenth century.

A.colorful

B.onto

C.of the

D.late

23.Protecting Florida’ s coral reefs in (difficult) because some of the corals are (very) fragil e: even the (touch) of a diver’ s hand can kil (it).

A.difficult

B.very

C.touch

D.it

24.Martin Luther King, Jr., (is) well known for (organize) the huge (human rights) march that (took place) in Washington in 1963.

A.is

B.organize

C.human rights

D.took place

25.(A lightning) flash produces electromagnetic waves (that) may (travels) along the Earth’ s magnetic field (for long) distances.

A.A lightning

B.that

C.travels

D.for long

Penjelasan:

16. Kata yang dibutuhkan kata sifat, bukan kata keterangan berakhiran -ly.

17. Kata much tidak benar, karena much berfungsi untuk uncountable noun.

18. Tidak perlu pakai kata it, karena jadi double subject.

19. Kata kerja yang benar adalah using,karena dari awal kalimat adaare.

20. Kata yang dibutuhkan bukanlah another, tapi any other state.

21. Kata onto hanya digunakan untuk menyatakan sesuatu yang bergerak.

Nomor 22 tidak ada.

23. Kata reefs itu jamak, jadi yang tidak boleh pakai kata it.

24. Kata yang dibutuhkan bukanlah kata organize namun sebuah gerund.

25. Kata may merupakan modal verb, jadi harus pakai Verb-1.

Semoga membantu ya.