Câu hỏi: There must be _______ least one vowel in every English word.

A. at

B. on

C. in

D. upon

Câu 1: John F. Kenedy was the first President to be born ____ the twentieth century.

A. in

B. on

C. at

D. up

Câu 2: Thank you very much _____ what you have done for me.

A. of

B. up

C. for

D. about

Câu 3: We were very disappointed _____ the organization of the festival.

A. to

B. with

C. about

D. of

Câu 4: He has been absent ____ school very often lately.

A. from

B. on

C. in

D. with

Câu 5: John missed a lot of lessons. He was ill _____ January to March.

A. on

B. from

C. of

D. in

Câu 6: Did you have a good time _____ Christmas?

A. at

B. in

C. for

D. on