...wherever（=any place where），whosever(=anyone's)，however(any way in which)的例子，唯独缺少whenever的例子？那whenever究竟是能还是不能引导名词性从句？如果不能的话，wherever与whenever结构、词性颇为相似，为啥一个能一个不能呢？第二个...
If you have really been studying English for so long, it's about time
you ______ about to write letters in English.选项里有 should be 和 were，答案选了 were。这个句型不是用“should+动词原形”或者“动词过去式”都可以嘛？那为什么不选 should be呢？求解答...
...n/53980），引起各位大咖的热烈讨论：It was my first time spending Spring Festival in China
with my host family.这是高中英语新教材北师大版必修1第3单元中的一个句子(p52)。其实，这个句子还有一个问题：那就是 Spring Festival 前面为什么不用定...
Time is up. Let's come back to ( ) the exercise.No,Jim is still playing outside. we should wait for him to come back to ( )together.A. do,beginningB.doing,beginningC.doing,begin.答案为C，两部分结构一样，为啥选的不一样。老师给记过 back to doing。如果第二句不...
Based on recent researches, distance learning slowly proves as valuable as the traditional campus-based form.该句中 based on 这里是独立成分吗？还是状语从句的省略？如果是状语从句的省略？如何还原？
Packaged foods are manufactured outside the home for purchase. This can be as simple as a butcher preparing meat, or as complex as a modern international food industry.其中的 as simple as 第一个 as 做副词，第二个 as 做连词，做比较状语后面 as complex as 相同？as s...