课程知识点列表
He dropped the vase after he had taken it
into the living room.这句话中had taken为什么要用had ，had是什么成分呢，该怎么理解呢
into the living room.这句话中had taken为什么要用had ，had是什么成分呢，该怎么理解呢
网校学员myu**提问
He dropped the vase after he had taken it
into the living room.这句话中had taken为什么要用had ，had是什么成分呢，该怎么理解呢
into the living room.这句话中had taken为什么要用had ，had是什么成分呢，该怎么理解呢
网校学员myu**提问
I have been lying here for half an hour.
网校学员我就是**提问
老师，请问mistake和wrong有什么区别呀？
网校学员川祭**提问
lesson 24 a skeleton in the cupboard
网校学员gun**提问
would 和 could的用法和区别？
网校学员mag**提问
Have you just made a new film?为什么这个句子要用完成时?
网校学员手机用**提问
Have you just made a new film?为什么这个句子要用完成时?
网校学员手机用**提问
