Câu hỏi: This summer, he will be eligible _______ a three week vacation.

A. on

B. about

C. of

D. to

Câu 1: Is the United States the wealthiest country ______ the world?

A. to

B. in

C. for

D. of

Câu 2: This variety of seed is inferior ______ the type I planted last year.

A. with

B. upon

C. up

D. to

Câu 3: I'm not familiar _______ that song.

A. to

B. of

C. with

D. about

Câu 4: This apartment would be too crowded for two people, but it is perfect ___ one.

A. about

B. with

C. for

D. to

Câu 5: Many vegetables, including tomatoes, and corn, are native ______ the New World.

A. for

B. to

C. about

D. upon

Câu 6: Oxygen, fuel, and hear are all necessary _____ combustion.

A. with

B. for

C. about

D. in