Câu hỏi: If you don't know the meaning of the word, look it __ in the dictionary.

A. up

B. on

C. after

D. for

Câu 1: Many vegetables, including tomatoes, and corn, are native ______ the New World.

A. for

B. to

C. about

D. upon

Câu 2: Oxygen, fuel, and hear are all necessary _____ combustion.

A. with

B. for

C. about

D. in

Câu 3: Tepees are characteristic ______ the Indian tribes of the Great Plants.

A. of

B. upon

C. from

D. about

Câu 4: People who are afraid ___ heights are called acrophobes.

A. of

B. on

C. in

D. to

Câu 5: Don't put ____ until tomorrow what you can do today.

A. away

B. off

C. aside

D. up

Câu 6: There is an increasing demand _____ taller building in big cities.

A. with

B. on

C. for

D. of