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

A. differ

B. difference

C. different

D. differently

Câu 1: The weather was fine so we decided to go ____________ foot.

A. on

B. by

C. with

D. in

Câu 2: Three women, none of whom we _______ before, _______ out of the hall.

A. saw-had come

B. had seen-came

C. saw-came

D. had seen-had come

Câu 3: He sometimes ____________ sports with friends.

A. play

B. plays

C. played

D. playing

Câu 4: 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 5: Digital cameras is a wonderful ___________.

A. invent

B. invention

C. invented

D. inventing

Câu 6: Another man-made satellite has _______ up into space.

A. sent

B. be sent

C. been sent

D. sending