问题描述：
英语选择I suggest the housing problem______be discussed at once
I suggest the housing problem______be discussed at once.
A.should be referred to B.referred to
C.be referred to D.being referred to
求原因
I suggest the housing problem______be discussed at once.
A.should be referred to B.referred to
C.be referred to D.being referred to
求原因
问题解答：
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