用括号内所给动词的适当形式填空。

1. After a knock at the door, the child heard his mother's voice _____ (call) him.

2. It's no good _____ (waste) strength in shouting.

3. Our group is mainly concerned with bird _____ (conserve) in coastal areas.

4. He felt embarrassed with so many eyes _____ (focus) on his clothes he was wearing.

5. The children talked so loudly at dinner table that I had to struggle _____ (hear).

施工单位在施工中发现施工图纸与现场实际情况不符时，应（）。

A.经监理同意修改设计

B.经监理同意继续施工建设工程教育网提供

C.书面通知监理、设计和建设单位

D.书面通知监理和设计单位