问题补充:
My boy pretended to do his homework when I entered his room.to do→to be doing
答案:
(答案→)to do→to be doing
解析:表示正在进行。
时间:2018-09-12 02:55:20
My boy pretended to do his homework when I entered his room.to do→to be doing
(答案→)to do→to be doing
解析:表示正在进行。