what should we do to fight SARS 为什么要加to

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• what else did you do on your last days off.这句话day为什么要加s,最后一个休息日应该单数啊
• what other places do you want to go to?为什么末尾要加to
• what else did you do on your last days off.这句话day为什么要加s,最后一个休息日应该单数啊
• what do you think to happen there yesterday 中"TO"为什么Y要加?
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• what should we do to fight SARS 为什么要加to
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• 39.What you said just now____ the matter we are discussing.　　A.have something to at B.has something to do with　　C.had something to do with D.has been something to do with为什么选A 为什么要to at
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