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

A. of

B. to

C. in

D. by

Câu 1: He is retired. He lives________________ his pension.

A. by

B. on

C. with

D. to

Câu 2: Your plan is similar ___________ his.

A. with

B. to

C. of

D. by

Câu 3: The teacher tried to explain the new formula ______________ his students.

A. to

B. for

C. with

D. by

Câu 4: Opening the parcel, hewas surprised ____________ what he saw.

A. at

B. in

C. to

D. with

Câu 5: The participants must find _______________ all the answers in order to go in the next round.

A. out

B. up

C. of

D. by

Câu 6: Your father is very kind__________ David.

A. to

B. with

C. about

D. for