不能导致离心泵密封填料冒烟的是（）。A、压盖磨轴套 B、泵轴弯曲 C、轴套不光滑 D

阅读下面的对话，根据上下文从方框内的选项中选择恰当的选项补全对话，使句义完整，符合逻辑。有两项为多余选项。
Paru:    1   , Nick? Is it time to go home?
Nick: No, it’s 3:15 p.m.. It’s time to go and play games.    2   ?

A. It’s blue B. But where’s your watch C. They’re blue D. No, I think it’s Paul’s E. What time is it now F. What day is it today G. You must look after your belongings.

Paul: I don’t know. I can’t find it.
Mr. Li: Whose is this watch? Is it your, Nick?
Nick:    3  .
Mr. Li: What color is your watch, Paul?
Paul:    4  .
Mr. Li: Is this one yours?
Paul: Oh, yes, it’s mine.
Mr. Li: Paul,   5   . Put it in your schoolbag.
Paul: Thank you, Mr. Li.