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

A. on

B. about

C. of

D. to

Câu 1: Don't put ____ until tomorrow what you can do today.

A. away

B. off

C. aside

D. up

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

A. with

B. upon

C. up

D. to

Câu 3: Was your choice of research topic acceptable _____ your instructor.

A. for

B. to

C. on

D. upon

Câu 4: If you don't know the meaning of the word, look it __ in the dictionary.

A. up

B. on

C. after

D. for

Câu 5: We just rested _________ a short time.

A. at

B. since

C. for

D. in

Câu 6: Many vegetables, including tomatoes, and corn, are native ______ the New World.

A. for

B. to

C. about

D. upon