4.　　　 The ball is too hard. Give me a s________ one instead.

3.　　　 Keep it a s________! Don’t tell anyone about it.

2.　　　 I can’t catch what you say. Would you mind speaking a little more s_________?

1.　　　 When time is l___________, it will never return.

10.　 As time goes__________, the friendships between my classmate and me are becoming lost.

单元单词拼写

9.　　　 The little girl made a living ___________ selling flowers along the streets.

8.　　　 I got excited __________ passing the test, staying awake till late last night.

7.　　　 We learn English ___________ a second language in most schools.

6.　　　 __________ Chinese, we should try our best to do something useful for the 2008 Beijing Olympics.

5.　　　 We’ll have to find out a better way to deal _________ the environment problem as soon as possible.