Câu hỏi: On behalf_____________ our group, he made a speech at the meeting.

A. of

B. to

C. in

D. by

Câu 1: The teacher tried to explain the new formula ______________ his students.

A. to

B. for

C. with

D. by

Câu 2: We could not play soccer due __________ the bad weather.

A. of

B. to

C. by

D. with

Câu 3: They cancelled the flight because _________________ the storm.

A. with

B. by

C. off

D. of

Câu 4: _________ the end of the film, the heroine was reunited with her family.

A. During

B. With

C. On

D. At

Câu 5: He is retired. He lives________________ his pension.

A. by

B. on

C. with

D. to

Câu 6: The bomb went____________ killing several by-standers.

A. off

B. of

C. to

D. by