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: Which activities do you think would be difficult ________ blind and deaf people?

A. to

B. for

C. with

D. of

Câu 3: Nylon ______________ in the 1930s

A. invented

B. was invented

C. is invented

D. has been invented

Câu 4: What _________ computer a miraculous device?

A. makes

B. make

C. making

D. to make

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: Our children _______to school by bus every morning.

A. take

B. are taken

C. have taken

D. are taking