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

A. without

B. by

C. with

D. off

Câu 1: He’s getting bored_____________ learning_____________ heart.

A. with/ by

B. with/ with

C. by/ by

D. about/ by

Câu 2: In English lessons we always speak ___________ English.

A. by

B. in

C. to

D. with

Câu 3: She insisted ___________ him wearing the red tie.

A. at

B. with

C. by

D. on

Câu 4: Why were you absent ____________ class this morning?

A. for

B. with

C. by

D. from

Câu 5: When I bought the house, my sister helped me_________ with a loan.

A. out

B. in

C. by

D. to

Câu 6: Do you think we’ll find a solution ___________ the problem?

A. about

B. for

C. to

D. with