5.Let us do the jobs ourselves, ______________________　?

4.You need to have a good dictionary, _____ __________________　?

3.She must be a music lover, ____ ___________________　?

2.My uncle used to smoke, ______________________　?

1.We must go at once,　 _______________________　?

7. He ______ the whole night. Is there anything wrong with him?

A. has been coughing　　 B. coughed　　　　　　 C. is coughing

6. I ______ a lot in American. I know much about that continent.

A. traveled　　　　　　 B. have been traveling　　　 C. am traveling

5. He ______ since ten o’clock. It is time to wake him up.

A. has been sleeping　　 B. was sleeping　　　　　 C. is sleeping

4. She ______ letters since two o’clock.

A. wrote　　　　　　 B. is writing　　　　　　　 C. has been writing

3. I ______ the English story book last night.

A. have been reading　 B. read　　　　　　　　　 C. reading