根据下列句子及所给汉语注释，写出空缺处单词的正确形式，每空一词。
Mike’s room is very________(整洁), we should learn from him.
You can read books (看书) in the school ___________(图书馆).
I don’t need a          (闹钟). I have a watch.
They are nice, so they always___________(帮助)others.
The desk is in his           （父母亲）room