The committee ______ the problem for a whole afternoon but they have not yet rea

游客2025-03-15 2

问题 The committee ______ the problem for a whole afternoon but they have not yet reached an agreement.

选项 A、has discussed
B、has been discussing
C、are discussing
D、have been discussing

答案 D

解析 committee是集合名词，后面的谓语用复数．现在完成进行时照应后文“they have not yet reached an agreement”。

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