Ⅰ.用所给词的适当形式填空
1．It ________ (snow)when he arrived at the station.
2．As I was coming here，I ________ (meet) your brother.
3．Great changes ________ (take) place in Beijing since it was liberated.
4．I ________ (tell) you as soon as I know.
5．We’ll wait until the doctor ________ (come)．
6．The telephone rang when I ________ (take) a bath.
7．As he talked on，he ________ (get) more and more excited.
8．They talked as they ________ (walk) along the river.
9．He was punished only because he ________ (break)the law.
10．As he was in a hurry，he ________ (leave)his bag at home.
Ⅱ.完成句子
1．随着时间的推移，天气变得越来越暖和了。
________________________________，it’s getting warmer and warmer.
2．我一听到那个声音，我就知道父亲来了。
________________ I heard the voice，I knew father was coming.
3．直到你告诉我，我才知道这件事。
It was ________________ you told me that I knew it.
4．既然大家都来了，我们就开始吧。
________________ everybody is here，let’s begin.
5．我第一次遇到她的时候，她正在等车。
________________________ I met her，she was waiting for a bus.
