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最佳答案:must 是情态动词.所以要接动词原形了如:The teacher said,"You must get back before 10 o'clock."---
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最佳答案:动词原形
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最佳答案:前后句有暗示吧不可能突兀的就说more careful具体问题具体分析~
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最佳答案:一、seem to be seem是一个实意动词,其后要用助动词构成反疑问句.如:It seems to be a good book,doesn't it?二
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最佳答案:当他们作为情态动词时后面加 动词原形MUST: 1.表示肯定推断 一定是 ````IT MUST BE MR ZHEN .那一定是甄老师2.表示语气 必须 ``
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最佳答案:I think you should be tired after a long journey.I think you must be exhausted a
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最佳答案:must 后面必须加动词must be 可接形容词 He must be tiredmust be 可接形名词He must be a student也可接动词