题目内容：

 

1.__________ (eat) too many sweets is bad for our teeth.

2.Tom wants            (be) a good teacher when he grows up.

3.My sister often            (fly) a kite in the park.

4.Liu Tao, __________ (not be) shy! You can do it well.

5.The twins don’t learn Maths hard, so they __________ (not do) well in it.