Where to get the materials and how to get them ______ at the meeting.
A、
have not discussed
B、
have not been discussed
C、
has not discussed
D、
has not been discussed
【正确答案】
D
【答案解析】
Where to get the materials and how to get them作主语时，看做一个整体，具有单数意义，因此选D。
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