—Don't throw about your newspapers!

—Sorry. I'm busy now. They will _______ later. [ ]

A. collect

B. be collect

C. be collected

D. collecting

在大修中对喷嘴的清理是很重要的，对喷嘴不能采取（）的清理方法。

A.手工清理

B.碰坏喷嘴

C.不遮盖喷嘴室

D.拆下用砂轮打磨