话题 had

话题 had gone

话题 had expected

话题 had persuaded

话题 had hoped

话题 had thought

话题 had been

话题 had seen

话题 is had

话题 had done

话题 had planned

问题 that从句成分分析

请问老师，that从句是定语从句修饰an explosion吗？为什么放在最后面呢？还是说定语从句修饰前面整个发生的事情an explosion would have undoubtedly occurred，有这样的用法吗？If the flames had reached these, an explosion would have undoubtedly occurred tha...

问题 had/would better do

请教老师，"最好做某事" would/had better do sth 这两种说法都是正确的？谢谢老师。

问题 it had ever made含义理解

In April 1939,the corporation placed the largest order it had ever made.上面这句话中的定语从句，因为使用了过去完成had ever mad，是否表示是“到1939年4月为止最大的订单”，而不是“公司所发出过的最大的订单”，这样的理解是否正确？希望...

问题 关于not的用法

...s telling the truth or not.我不知道他是否说了真话。used to say that you do not want sth or will not allow sth （拒绝或不允许）不 ‘Some more? ’ ‘Not for me, thanks. ’“再来点儿吗？”“我不要了，谢谢。”‘Can I throw this out? ’ ‘Certainly not. ’...