-I believe you could have asked my brother for help for he is very good at maths
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—I believe youcould have asked my brother for help for he is very good at maths.
—Really? Oh, awhole night ________. Why not tell me earlier?
A．is wasted
B．had wasted
C．was wasted
D．will waste
试题答案
答案：C
解析：| 整个夜晚是被浪费了，故用被动语态。从后面句子判断，你为什么不早点告诉我?说明waste动作发生在过去，用一般过去时。
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