根据所给提示，完成句子。每空一词，含缩略词。

1. My parents used to do exercise after supper. (改为否定句)

    My parents _____ _____ to do exercise after supper．

2. Mr. White will stay in Chongqing for a week. (对划线部分提问)

    _____ _____ will Mr. White stay in Chongqing?

3. This book is very interesting. (改为感叹句)

    _____ _____ the book is!

4. I think Mr. Smith is in danger. (改为反意疑问句)

    I think Mr. Smith is in danger, _____ _____?

5. 昨天妈妈回来时我正在读书. (完成译句)

    I was _____ some _____ when Mom came back yesterday.

关于无创通气疗程哪些做法符合中华医学会制定的建议（）

A.每次3～6h，每天1～3次

B.每次3～6h，每天1～3次，共3～7天

C.每次大于4h，每天1～3次，至2个月

D.根据实际情况制定，无时间限制

E.越短越好