1、  This is the dictionary _________ Mary gave me for my birthday.

2、  —Must I finish the work today, Mr. Wang?

3、  The number of people invited _________ fifty, but a number of them were absent for different reasons.

4、  —What do you think of these two books?

5、  Come on, Mike! You will miss the first train _________ you hurry up.

6、  _________ of the students are girls in my class.

7、  Last month, many trees _________ along the streets to make our city more beautiful.

8、  _________ pretty your dress is! Where did you buy it?

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

10、  When winter comes, the weather gets _________.

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

12、  When I went to say goodbye to Anna, she _________ the guitar.

13、  Tom thinks he is _________ to travel by himself.

14、  Sitting in front of the screen for too long is bad _________ your eyes.

15、  It’s important for us _________ a healthy lifestyle.