初中时间状语从句练习?

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初中状语从句练习题
I.填入适当的引导词
　　1.I haven't heard from him _____ he went to America.
　　2.He won't be here _____ he is invited.
　　3.He will not go to the cinema _____ he is very busy.
　　4.We found the key _____ she had left it.
　　5.We found the books two days ____ he had gone away.
　　6.We had no sooner got to the station _____ the train left.
　　7.He speaks English ______ he were an Englishman.
　　8.He is explaining clearly _______ they could understand.
　　9.Do not leave the room _____ you have finished the test.
　　10.She sang ______ she went along.
　　II.改错
　　1.The children were running on the playground as fast as they can.
　　2.Since her husband had died,so she had to support her family.
　　3.He won't go out until his mother will e.
　　4.He was very foolish that he didn't pass such an easy exam.
　　5.Tom had gone out as soon as his mother got home.
　　6.It was three months since he came to our school.
　　7.The playground of our school is larger than their school.
　　8.The streets in Nanjing are wider than Shanghai.
　　9.Whatever there is plenty of sun and rain,the fields are green.
　　10.She sings songs as if she is a bird.
　　III.找出从句并指出是那类从句
　　1.It depends on whether we have enough time.
　　2.The question he asked was where the electrical equipment should be stored.
　　3.The mountain is no longer what it used to be.
　　4.The fact that she works hard is well known to us all.
　　5.He was not the man that he was before.
　　6.Now you was free,why not go swimming with us?
　　7.Where there are schools and colleges,there are examinations.
　　8.Bad habits,once firmed,are difficult to give up.
　　9.She often wears the same kind of skirt as her twin sister does.
　　10.The moment he opened the window,a bird flew in.
　　IV.填入适当的引导词完成句子　　1.____ will do the experiment es to the professor's office.　　2._