Câu hỏi: All work had to be done by ...... hand when there were no modern machines.

A. an

B. the

C. x

D. a

Câu 1: Can you play ..... piano?

A. a

B. an

C. the

D. x

Câu 2: I want to see ...... movie. I don't care which one we see. I just want to get out of the house tonight.

A. a

B. an

C. the

D. x

Câu 3: She needs  ........ water. She is really thirsty.

A. a

B. an

C. the

D. x

Câu 4: Birds can fly in ........ sky.

A. an

B. the

C. x

D. a

Câu 5: Finally we got to .......... house where our grandfather and grandmother had once lived.

A. the

B. an

C. x

D. an

Câu 6: I need one out today. ........... new computer. I'm going to the electronics' store to pick

A. a

B. an

C. the

D. x