连词成句，注意大小写和标点符号。

1. danced, in, lots, Chinese, of, she, cities (.)

2. she, these, is wearing, clothes, why (?)

3. father, learn, did, English, your (?)

4. Amy, music, is, now, to, listening (.)

5. was, a, ten, years, he, ago, driver (.)

6. did, grandpa, what, do, your, yesterday ( ?)

泵在封闭运行时，泵体温度会迅速上升，泵内液体的蒸气压降增高，导致（）的发生。

A.气缚现象

B.汽蚀现象

C.水击现象

D.都不对