.Though having discussed it for long, they still haven’t reached an agreement___

题干

.
Though having discussed it for long, they still haven’t reached an agreement__________they should pour more money into the project.

A．that

B．if

C．whether

D．what

上一题下一题 0.94难度单项选择更新时间:2010-05-14 09:04:56

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