() 3. I began watching here an hour ago. but now nothing yet

   A. happens   B. will happen

   C. happened   D. has happened

() 2. —Dave,we will leave in 10 minutes.Are you ready?

    —No,I our guide book and towels yet.

   A. don't pack

   B. didn't pack

   C. have packed

   D. haven’t packed

Ⅲ.单顶选择

() 1. —Will you go and see the movie Net Mother with me?

    一Thank you. But I it already.

   A. saw   B. have seen

   C. see   D. will see

3. 那首熟悉的歌曲把我们带回了美好的初中 时光。

2. 自那时起，他就决定为成为科学家而努力学习。

4. 她没去过美国，但是去美国是她的梦想。

V.根据汉语提示完成句子

1. 听音乐是一种很好的放松方式。

5. You’d better (clean) your classroom.

4. The ticket to the ship is (due) in two days.

3. Stop (work) ! Let's (go) swimming,shall me?