第二节，语法填空，根据上下文在空白处填写适当的词语，或使用括号中所给词语的适当形式填空。(每小题，2分，总分20分)
Expressions about water are almost as common __21__ water itself. But many of the expressions___22___(use) water have unpleasant meanings. The expression ‘to be in hot water” is one of them. It’s ___23___ old expression.
“ Hot water” which was used five hundred years ago means being___24___ trouble. One story it got the meaning ___25___ the custom of throwing down extremely hot water on enemies___26___ (attack) a castle. That no longer happens, but we still get in hot water. ____27____ we are in hot water, we are in trouble. It can be any kind of ____28____,serious or not so serious. A person _____29____ breaks a law can be in hot water with the police. A young boy can be in hot water with his mother if he walks in a house with____30____(dirt) shoes. “ Being in deep water: is almost the same as “ being in hot water”. When you are in deep water, you are in a difficult position.
