He pretended to be working hard when his mother entered his room 这个句子有错吗 如果错了怎么改
问题描述：
He pretended to be working hard when his mother entered his room 这个句子有错吗 如果错了怎么改
答
pretend to be doing 是强调不定式的动作正在进行的过程中.
pretend to do是强调假装要做某事,而不一定正在进行或者是已经发生.
还有一种完成式pretend to have done 强调假装后面的动作已经完成.
可以自己判断下 啊
用法给你了