根据中文提示，用词组的适当形式填空，每空一词。
1. 一What do you think of it?
一I agree with you. My view is ________ _________(与……相似)yours.
2. We must _______ ________(执行)the policy to control the population at once.
3. You have to do your homework carefully to avoid _________ ________ (犯错误).
4. There is ________ __________ (毫无疑问)that computers are widely used in business.
5. 一Where is Mr. Smith?
一He has ________ _________(动身去)Hainan for a holiday．