6．A p_______is a doctor who examines patients and gives advice on general medicine.

5．The fast food restaurant tries to e_______ that customers are served quickly.

4．Have you listened to the weather f_________? What will the weather be like tomorrow?

3．Don’t judge a person only on the b_________of first impressions.

2．The street is too n_______. It does not allow cars from opposite directions to pass.

1．Our class c_______ of twenty-five boys and thirty-two girls.

20．The teacher told us the truth _____practice makes perfect.

A. why　　 B. which　　 C. that　 D. when　

19．____we’ll go camping tomorrow depends on the weather.

A. If　　 B. Whether　　 C. That　　 D. Where