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

A. with

B. upon

C. up

D. to

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

A. to

B. in

C. for

D. of

Câu 2: This must be done_________ any price.

A. for

B. at

C. in

D. with

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

A. of

B. upon

C. from

D. about

Câu 4: Many vegetables, including tomatoes, and corn, are native ______ the New World.

A. for

B. to

C. about

D. upon

Câu 5: Mark Twain based the story ______his experience in the West.

A. on

B. from

C. in

D. on

Câu 6: This summer, he will be eligible _______ a three week vacation.

A. on

B. about

C. of

D. to