用 take place, happen,occur或 break out 填空。

1. When will our school sports meet ____.

2. Diseases _____ after the flood.

3. A terrible traffic accident  _____ last night.

4. It ____ to me that I had left my keys home.

5. I  ____ to be on the spot when their quarrel ____.

室内给水管道的暗装是将管道敷设在（）等处隐蔽敷设。

A、室内天花板下

B、顶层吊顶内

C、室内墙、梁

D、管沟中

E、管径内