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

A. without

B. by

C. with

D. off

Câu 1: Your plan is similar ___________ his.

A. with

B. to

C. of

D. by

Câu 2: She insisted ___________ him wearing the red tie.

A. at

B. with

C. by

D. on

Câu 3: Are you excited ______________ going on holiday next week?

A. about

B. up

C. at

D. with

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

A. for

B. with

C. by

D. from

Câu 5: This area is rich _________ oil.

A. by

B. to

C. at

D. in

Câu 6: Have you washed your hands______________ having lunch?

A. before

B. after

C. during

D. for