题目:He _____ at the meeting this morning. He
was in hospital at the time.A. couldn't have
spokenB. mustn't have spokenC. shouldn't have spokenD. needn't have spoken我选择了mustn't have spoken,而正确答案是A。并且给出的解析是:1.没有mustn't have done 这个结构。2....
尊敬的各位老师:I watched Tom playing tennis.这个句子里Tom playing tennis是一个复杂宾语,这个句子里的playing是一个现在分词,那么这个句子里的Tom playing tennis是带有自己主语的现在分词短语吗?如果Tom playing tennis是带有自己主语的现...
...既有这样的解释"(使大小、数量等)减少,减小,降低to become or make
sth become smaller in size, number, etc",又有这样的例句“there was a 25 percent
decrease in congestion overnight”所以:问题一:这里的decrease到底是名词还是动词呢?问题二:w...
Red tourism is going global as more and more Chinese tourists are drawn to visiting revolutionary attractions in countries like Russia, which share a communist past with China, or countries where famous revolutionaries have lived.请问:(1) as 是表原因吗?(2) share a communist past...