题目内容
-Susan stays alone in the classroom and looks sad.
-________ to her?
[ ]
A.What happens
B.What has happened
C.What is happening
D.What was happening
答案:B
练习册系列答案
相关题目
题目内容
-Susan stays alone in the classroom and looks sad.
-________ to her?
A.What happens
B.What has happened
C.What is happening
D.What was happening