how long后面要加什么动词?问题补充：how long 后面的动词一定是延续型动词吗?比如要用 How long has he been away from China?而不是How long has he left China?
问题描述：
how long后面要加什么动词?问题补充：how long 后面的动词一定是延续型动词吗?比如要用 How long has he been away from China?而不是How long has he left China?
答
完成时 HAVE HAS HAD 或助动词 DO DOES DID 查看原帖>>