When is he going to play the piano?为什么加ING
问题描述:
When is he going to play the piano?为什么加ING
答
这是个将来时的句子,将来时的句型是be going to do sth.
When is he going to play the piano?为什么加ING
这是个将来时的句子,将来时的句型是be going to do sth.