Câu hỏi: How old __________ she?

A. are

B. is

C. am

D. was

Câu 1: Nowadays, children spend too much time  ………… in front of the computer.

A. sit

B. sitting

C. to sit

D. sat

Câu 2: You must do your homework more ……. in the future.

A. careful

B. care

C. careless 

D. carefully

Câu 3: It is difficult ___________ all the instructions at the same time

A. to remember

B. remember

C. remembering

D. remembered

Câu 4: Alan agreed _______ hide and seek with me this afternoon.

A. to play

B. play

C. played

D. playing

Câu 5: Lan and Hoa………… to the public library often last month.

A. aren't go

B. don't do

C. didn't go

D. won‘t go

Câu 6: They are going ____________ Halong Bay in this summer vacation.

A. visit 

B. visiting

C. to visit

D. visited