单选题
Twenty pounds______ enough for such a poor family to spend for a month.
A、
were
B、
being
C、
have been
D、
was
【正确答案】
D
【答案解析】
[解析] 表示时间度量等复数名词做主语时,常常作为一个整体看待,谓语动词用单数:Ten miles is a long distance. 10英里是很长的路程。
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