“大错不犯，小错不断，气死公安，难倒法院。”

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1. 那时他正在努力算这道数学题。   

     He was trying hard to                   this math problem at that time. 

2. 史密斯先生说话很慢以便学生们能够听清楚。

     Mr. Smith speaks slowly                   the students can hear him clearly.   

3. 今天天气很好，为什么不去散步？

    It's fine today._         ____go out for a walk? 

4. 你最好不要过分依赖父母，要学会照顾自己。   

   You'd better not        too much        your parents, and learn to look after yourself.    

5. 对不起，刚才我错拿了你的伞。

   Sorry, I  took your umbrella                  just now.

6. 昨天你发生了什么事？  

   What        you yesterday?

7. 乘电梯到二楼，向右拐。  

            the elevator         the second floor and turn right.