看到这样一个句子：If it not for your help, I really don’t what I’d have done. 要不是你的帮助，我真不知会弄成什么样子。这里难道不是应该用 If it hadn’t been for your help 吗？为什么用 if it not for your help 呢？难道是 If it hadn’t been for…...
...s, and adorned the surfaces of the earth with branches and leaves, created also life for each of the kinds that move and breath.英国文学选读里的一句话，能麻烦老师分析一下吗? 这里said是并列谓语还是什么? 为什么前面没有连词呢?
...e several hours late, in which case there’s no point in our waiting.3.Do you still remember the day when (on which) we went to visit the museum together?这些引导词的意思一样吗？有什么不同之处？分别代表什么？如何区分？
I was really worried about doing well at my presentation this afternoon.请教老师，既然担心，为何用doing well? 为何不是i was really worried about doing bad... ... ?谢谢老师。
...nd the
clock ticked lower in the corner, and the fire died down to a glow, like an old
heart that is neither chilled nor dead, and grandmother sang. To be sure, it
would not do for the parlor and concert room now-a-days; but then it was the
old kitchen and the old-fashioned grandmother, and the old ...
...子：As different as Bennett and Greeley were from each other they were also curiously alike.语境：前文介绍了Bennett和Greeley的不同点，下文要开始介绍他们的相同点。参考答案翻译：尽管贝内特和格里利不同于彼此，但他们又惊人地相似。问题：as...
He did very badly on the exam. He ___harder.A.must study B.must have studied C.should study D.should have studied本题答案选D，AC为什么错误呢，不能表示之后他必须或者应该好好学习吗？肯请老师解答，感谢！