8.  如果不赶快，你就会赶不上那列火车。  
If you don't hurry up, you will surely     the train.

7.  我希望养一只宠物作为朋友。

I     a pet as my friend.

6.  他们曾经计划来我们的城市并在这里呆上一周。

They once     to our city and     here for a week.

5.  米莉太害羞,没同意在聚会上为我们唱一首歌。

Millie was too shy to     a song for us at the party.

4.  她昨天上午开始做那项工作,直到一个小时前才做完。

She     do the work yesterday morning and     finish it     an hour ago.

3.  有些动物学会了把它们吃不了的食物储存起来。

Some animals     the food they cannot eat up.

2.  蜜蜂总是记得它们走过的同样的路。

Bees always remember     they went.

The door is     ， so the bat can't       the room.

4.  You     do that kind of thing again. We do not like it.

3.  The lights in the classroom are still on. There     be someone in it now.