1. The sandstorms did great harm to many plants and houses.

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1. The sandstorms did great harm to many plants and houses. （改为一般疑问句）
__________ the sandstorms __________ great harm to many plants and houses?
2. Jim has stayed in the college for five years. (对划线部分提问)
_________ _________ has Jim stayed in the college?
3. The students sweep their classroom after school every day. (改为被动语态)
Their classroom __________ _________ after school every day.
4. Jack is so young that he can’t understand the problem. （保持句意基本不变）
Jack is not old __________ __________ understand the problem.
5. Sierra said, “The movie is going to be exciting.” （改为间接引语）
Sierra said _________ the movie _________ going to be exciting.

1. Did, do 2. How long 3. is swept 4. enough to 5. that, was

1.     过去式的一般疑问句，谓语动词为一般动词，用助动词did构成一般疑问句，后跟动词原形do，故本题空格处填Did，do。
2.     对时间长度提问用多长的疑问短语how long，故本题空格处填How long。
3.     被动句的结构为be+动词的过去分词，主语为单数第三人称be动词用is，sweep的过去分词为swept，故本题空格处填is swept。
4.     本题的含义为杰克如此的小以至于他不懂这个问题，也就是说杰克明白这个问题还不够大，enough表示足够的含义，enough to do表示足以做某事，故本题空格处填enough to。
5.     本题的主语为过去时，从句也用过去时，be的过去式为was，宾语从句为陈述句通常可以加一个关系词that。故本题空格处填that was。

waste gases p____ the air and do great harm to our health请填词 the earthquake and tsunami_(C)___caused did great damage to 选择（）1.The strong light（）great harm to our eyes A.is B.does great harm.So the local government should take measures to many plants and animals relieve a substance to absorb harmfu Many houses and factorties(build)___last year.A great deal o 1 Many lifesyle patterns do such __ great harm to health tha many rare plants and animals are dying ( )the destruction of there are different plants and many animals on the Earth. The cold weather c___ many plants to die last year the cold weather c____ many plants to die last year many of the houses与many houses有什么区别?