根据句意，用括号内所给单词的适当形式填空。
小题1:Li Yongbo is one of the most famous ________(coach) in China.
小题2: Because of colour (blind), Tom can’t join the army.
小题3: Having cold drinks in such weather may be (harm) to your stomach.
小题4:You should spend your spare time more (wise), instead of doing meaningless things.
小题5:Lucy is my _______(close) friend in my class and I’m willing to share my problems with her.
