题目内容
4. The teacher told us that 70 percent of the earth (cover) with water.
4. is covered
() 5. 一 The water in Taihu Lake is getting clearer，isn’t it?
—Yes. It's still not good enough， .
A. either B. since C. though D. afterwards
2. We all know the police (search) here for the thieves at this time yesterday.
3. Look!The snow (stop) . Let's go outside to make a snowman.
7. Cindy often ( write) diaries in Chinese,but she doesn’t do it now because she thinks it is difficult.
8. The Greens (have) supper when suddenly there was a knock at the door.
6. — Dear!Why didn't you answer my telephone?
——Sorry!I ( attend) an important meeting then. My mobile phone was left in my office.
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