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: Digital cameras is a wonderful ___________.

A. invent

B. invention

C. invented

D. inventing

Câu 2: He asked me if I was capable __________ fixing the electric cooker. 

A. of

B. on

C. to

D. with

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

A. starting

B. start

C. to start

D. started

Câu 4: I prefer ___________ abroad to travelling within the country.

A. going

B. to go

C. go

D. went

Câu 5: The books ___________ have been read by the students should be put on the shelf.

A. who

B. whose

C. that

D. what

Câu 6: She used __________ to a special school for deaf-mute students.

A. go

B. to go

C. going

D. went