the problems / now.a:are discussing ; b; are being discussed.why?
题目
the problems / now.a:are discussing ; b; are being discussed.why?
答案
应选B are being discussed
解析：问题是被讨论的,所以要用被动语态.又因为后面的now,所以要用现在进行时被动语态.
The problems are being discussed now.
这些问题正在讨论中.
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