( )What does Mr.Liu usually_when he is at school?A.dress b.wear c.put in d.in原因?
问题描述：
( )What does Mr.Liu usually_when he is at school?
A.dress b.wear c.put in d.in原因?
答
B
答
个人觉得是in,表状态
答
选B 这是问的状态,AC 都是瞬时的动作,wear表示状态,in 要用be做助动词,前面是does.所以选b