Câu hỏi: Braille _________ a system of raised dots that can be read with the fingers by people who are blind.

A. am

B. be

C. is

D. are

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

A. go

B. to go

C. going

D. went

Câu 2: Digital cameras is a wonderful ___________.

A. invent

B. invention

C. invented

D. inventing

Câu 3: She had worked as a tourist guide before __________ a teaching career.

A. starting

B. start

C. to start

D. started

Câu 4: The weather was fine so we decided to go ____________ foot.

A. on

B. by

C. with

D. in

Câu 5: He sometimes ____________ sports with friends.

A. play

B. plays

C. played

D. playing

Câu 6: She noticed a marked _______ in the children on her second visit.

A. differ

B. difference

C. different

D. differently