I could have called you yesterday, but I______your telephone number.
A、
didn't have
B、
hadn't had
C、
won't have
D、
wouldn't have
【正确答案】
A
【答案解析】
could have done意为“本可以做……(而没有做)”,是对过去情况的假设。根据句意和时间状语yesterday(昨天)可知,but后面的句子是对过去情况的陈述,所以应用一般过去时。故选A。
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