Câu hỏi: This area is rich _________ oil.

A. by

B. to

C. at

D. in

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

A. to

B. for

C. with

D. by

Câu 2: He admitted having opened the suitcase ______________ asking its owner.

A. without

B. by

C. with

D. off

Câu 3: She said to me “why don’t you relax___________ a while?”

A. at

B. for

C. during

D. in

Câu 4: They cancelled the flight because _________________ the storm.

A. with

B. by

C. off

D. of

Câu 5: We could not play soccer due __________ the bad weather.

A. of

B. to

C. by

D. with

Câu 6: Are you excited ______________ going on holiday next week?

A. about

B. up

C. at

D. with