Câu hỏi: He admitted having opened the suitcase ______________ asking its owner.

A. without

B. by

C. with

D. off

Câu 1: Your father is very kind__________ David.

A. to

B. with

C. about

D. for

Câu 2: The participants must find _______________ all the answers in order to go in the next round.

A. out

B. up

C. of

D. by

Câu 3: When I bought the house, my sister helped me_________ with a loan.

A. out

B. in

C. by

D. to

Câu 4: The teacher tried to explain the new formula ______________ his students.

A. to

B. for

C. with

D. by

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

A. by

B. on

C. with

D. to

Câu 6: The local people are very hospitable___________ strangers.

A. to

B. for

C. with

D. about