句子：A student should be given the right to decide whether or not to learn a foreign language.问题1：whether or not 的词性、用法（前后形式）是什么？问题2：whether or not 在此处，是否有更好的表达方式（换到其他位置），同时保持意思不变？感谢...
One of the things I always believe is that no matter how bad something is, you can take something positive out of it．The one time I wasn't sure of that was on September 11．I usually wake up at 6∶30 or 7∶00 in the morning．That day, I happened to wake up earlier．I turned on the TV and I sa...
Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do: once or twice she had peeped into the book her sister was reading.能把这句子的语法成分说说吗？
You'd better see Dr Wang about that cough.Did he often come to the hospital on consultations?...Nina,you should have faith in doctors ,especially in DR Wang,he is a very experienced expert....我不太理解这组对话中，那几个介词短语的作用，想请老师讲解以下,谢谢
...ld discover it. They didn’t think they could bear it if anyone
found out about the Potters. Mrs. Potter was Mrs. Dursley’s sister, but they
hadn’t met for several years; in fact, Mrs. Dursley pretended she didn’t have a
sister, because her sister and her good-for-nothing husband were as
unDu...
They have an air of freedom, and they have not a dreary commitment to mean ambitions or love of comfort.（新概念四Lesson5）请问老师，这里不用don't have而是用not a，是not a=no吗，然后后面的or表示否定成分的并列？
Are you looking for a temporary or a permanent job? 你是想找一份临时的工作还是想找一份固定的工作？这是一个选择疑问句，请问这个句子可以省略or后面的冠词吗？即说：Are you looking for a temporary or permanent job?
Ok, we've been talking about how throughout history, it was often difficult for people to give up ideas,which had long been taken for granted as scientific "truths," even if those ideas were false.请问这里的how是什么用法，是常用的吗？