---Did Mary come?---I don’t know. She ________ while I was out.A. might come B. might have come C. could come D. must have come老师，题目答案B，但是这题选 AC的话不能表达对过去的推测吗？是因为I don’t know的时态吗？
He said Google has made improvements since then and was confident it could deliver games in the largest high definition standard, 4K, and running at 60 frames a second.最后and running让人摸不到头脑，running我觉得是deliver的伴随状语，可是为什么要用and连接？难道这是...
英语里破折号有特殊意义么，with 短语作伴随状语，修饰 big 还是 one？【来自Twilight】Of the three boys, one was big — muscled like a serious weight lifter, with dark, curly hair.with短语作伴随状语，修饰 big 还是 one？感谢大神指点迷津。
比如这句话But a botched response to the virus would lay bare tensions inherent in the party’s hybrid claims to legitimacy.如果lay是谓语动词，那么bare作什么句子成分呢？是lay的状语吗？
Such writings are good for nothing_______ the naive, among whom they spread bad influences and foster bad habits.A.except bluffedB.except to bluffC.but bluffD.but to bluffed
He did whatever I asked to do. Whoever told you that? I'll tell you whenever you make a mistake.wherever has he gone? 虽然知道ever可以加强语气，但不知翻译成中文时，怎么体现出来，加一个无论或究竟吗？？
Attorney Goodman's charge was answered in prefatory remarks again by Congressman Henry Hide of Illinois, a member of the House, in effect acting for the prosecution.
...太明白这里加粗的成分应该如何分析，以及空中为何要填as，希望老师能解答一下~Their academic struggles and failures are often met with disapproval by teachers, peers and parents. Such disapproval can take the form of unpleasant labeling （标签） of a child as "s...
老师您好，我这有一道题，答案是cThe three men tried many times to sneak across the border into the
neighboring country, ___ by the police each time?A. had been captured B. being always captured?C. only to be captured D. unfortunately captured但是老师，我觉得 D 选项也对，...