Câu hỏi: He sometimes ____________ sports with friends.

A. play

B. plays

C. played

D. playing

Câu 1: She used __________ to a special school for deaf-mute students.

A. go

B. to go

C. going

D. went

Câu 2: She noticed a marked _______ in the children on her second visit.

A. differ

B. difference

C. different

D. differently

Câu 3: His handicap prevented him ___________ swimming all lifelong.

A. to

B. off

C. from

D. up

Câu 4: Our children _______to school by bus every morning.

A. take

B. are taken

C. have taken

D. are taking

Câu 5: She had worked as a tourist guide before __________ a teaching career.

A. starting

B. start

C. to start

D. started

Câu 6: What _________ computer a miraculous device?

A. makes

B. make

C. making

D. to make