问题
Sometimes parents find ______ hard to communicate with their children.
A:this
B:that
C:it
D:one
B:that
C:it
D:one
正确答案是：
同类题型
The car is in the way. Would you mind moving it?— Sorry, I’ll do it _____.[ ]
How many times have you _________ to that place? — Twice.
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