1.My suggestion is that you (apologize)to your mother.
答案(should)apologize
2.He worked on the plan for almost a month but couldn’t see any progress.That’s he (lose)his patience.
答案why;lost
3.I am very interested in he (earn)his passage in such a short time.
答案how;earned
4.We are glad so many old friends (attend)our party tomorrow.
答案that;will attend
5.I want to know you can repair the computer or not.
答案whether
6.Do you know hat it is?
答案whose
7.Please tell me you (wait)for.
答案whom;are/were waiting