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问题 连词成句

连词成句。

1. to   Nice   you   meet  

                                              

2. Where   your   mouth   is 

                                              

3. is    Mike   This 

                                              

4. to    Let's    go    school

                                              

答案

1. Nice to meet you.

2. Where is your mouth?

3. This is Mike.

4. Let's go to school.

解答题
（1）计算：2-2+|-
1
4
|-(π-2013)0；
（2）化简：(
1
2
-
a
2a+2
)÷
a
a+1
．
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选择题

However,the incident was the only spark_____the fire.

A．which set off

B．set off

C．that set off

D．setted off
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