1、  My mother has never been to London, _________?

2、  Henry, you’d better _________ your T-shirt right now! It looks so dirty.

3、  The boss believes the letter _________ in half an hour.

4、  Tony _________ his paper after supper.

5、  If you _________ him tomorrow, ask him if he will come to our party next week.

6、  Class One felt sad as they lost _________ Class Two in the football match.

7、  _________ a mother duck and some baby ducks in the river.

8、  Remember to watch first before you walk _________ the road.

9、  —Has your brother finished his letter yet?

10、  There are about fifty students in the class. Mike is _________ tallest.

11、  I need to do my homework. Turn off the radio, _________?

12、  Tom sings _________ than his brother.

13、  David is a sports reporter. He asks for a(n) ________ with the big sports star.

14、  —What is _________ most useful invention in the 20th century?

15、  About _________ students in our class can describe that place in English.