题目内容
many times, but we still didn't understand how to work out the physics problem.
A.Being explained B.She has explained to us
C.Having been explained D.She explained to us
D

练习册系列答案
相关题目
题目内容
many times, but we still didn't understand how to work out the physics problem.
A.Being explained B.She has explained to us
C.Having been explained D.She explained to us
D