英语:and the doctor said that he could do nothing( )tina A:helping B:to help C:helped D:help老师讲评的时候说什么因为could do,所以选B,为什么呢?
问题描述:
英语:and the doctor said that he could do nothing( )tina A:helping B:to help C:helped D:help
老师讲评的时候说什么因为could do,所以选B,为什么呢?
答