根据句子意思，用括号中所给汉语提示或英语单词的适当形式填空。（每空一词）
小题1:Can you give me a useful ___________(suggest) on how to learn a foreign language well. 
小题2:He is _______(able) to solve the problem because it’s too hard for him.
小题3:What will you buy for your mother on __________ (woman) Day?
小题4:It’s the ___________ (sad) story that I have ever read.
小题5:Though three __________(four) of the earth is covered with water, we mustn’t waste it.
小题6:Last month, Zhang Lili ____________ (honour) with Best Teacher.
小题7:---Is this red bag Tom’s?
---No, _________ (he) is black.
小题8:If you work hard, you can ___________ (easy) pass the final exam.
小题9:The workers often complain that the boss always has them __________ (do) extra work.
小题10:I am used to ___________(take) exercise for half an hour every morning.