Câu hỏi: Not all books belong _________this class.

A. in

B. to

C. for

D. at

Câu 1: Don’t you know what happened _________ the people who went on holiday with us?

A. about

B. to

C. by

D. at

Câu 2: They held a party to congratulate _______ their son’s success to become an engineer.

A. on

B. in

C. to

D. up

Câu 3: Vietnam carried _________an intensive program for its athletics, which included training in facilities, both home and abroad.

A. for

B. at

C. out

D. of

Câu 4: Plant and animal extinction leads _________ loss of biodiversity.

A. on

B. in

C. into

D. to

Câu 5: Mozart died ________ Vienna in 1791 _________ the age of 35.

A. in / on

B. in / at

C. at / in

D. of / for

Câu 6: When are you leaving __________ Singapore? This week or next week?

A. for

B. to

C. from

D. of