Câu hỏi: She’s very old and can’t live alone. She needs someone to look _________ her.

A. up

B. for

C. after

D. through

Câu 1: His father used the money he won to set_________ his own company.

A. down

B. up

C. at

D. in

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: This organization is quick __________ sending relief goods to the flooded areas.

A. at

B. as

C. up

D. by

Câu 4: You should pay more attention __________ what your teacher explains.

A. in

B. at

C. on

D. to

Câu 5: I keep sneezing because I got wet_________ the way home yesterday.

A. during

B. at

C. by

D. on

Câu 6: Don’t you know what happened _________ the people who went on holiday with us?

A. about

B. to

C. by

D. at