题目内容：

用方框中所给单词的适当形式填空，每个单词限用一次。

	turn, fast, shake, science, though

 

 

1.It’s very important for us to study         .

2.My brother Tony runs         than me.

3.In China, we are supposed to         hands when we meet for the first time.

4.Last month many people         off their lights for Earth Hour 2012.

5.Tina doesn’t give up her dreams         she can’t speak English very well.