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最佳答案：I have to take the coat because it is very cold in winte
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最佳答案：must:yes,you must. no,you needn't.should:yes,you should. no,you needn't.need:Yes
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最佳答案：The most important thing is to learn how to learn,for there is more to learn aft
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最佳答案：No,you shouldn't.
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最佳答案：must 开头的回答,肯定用Yes,you must.否定用No,you needn’t.need 开头的回答,肯定用Yes,you need.否定用No,yo
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最佳答案：my advice to you整个做主语..to you只是个介词短语修饰前面的my advice..可以忽略.sir 是插入语.后面的is是句子的谓语..t
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最佳答案：must ; yes,.must.No,.needn't.can; yes ,...can.No,.can't.should; yes,.should.No,.
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最佳答案：She should put on her coat.
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最佳答案：1.wash my hands2.I'll go to visit my friends.
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最佳答案：【天马行空外语团小奇奇为您解答】1．—Must I come before dawn?我必须天亮前来吗?—Yes,you must．是的,必须天亮前来.—No,