增加：在缺词处加一个漏字符号(∧)，在该行右边横线上写出该加的词。

删除：把多余的词用斜线(＼)划掉，在该行右边横线上写出该词，并也用斜线划掉。

修改：在错的词下划一横线，在该行右边横线上写出改正后的词。

小题1:I asked him whether he will stay at home or go out that night.

小题2:I made up my mind to do my best to make a progress in English.

小题3:The boss got his workers entire in his power.

小题4:The teacher told us not make any noise then.

小题5:Her brother said he had been there half a month ago.

为达到防腐、阻垢、杀菌的作用，需要向工业水中加入的药剂有（）。

A、缓蚀剂

B、阻垢剂

C、杀菌剂

D、螯合剂