Mary _________ my letter; otherwise she would have replied before now.
A. has received B. ought to have receivedC. couldn’t have received D. should have received昨日習題答案﹕
Our team ________ every match so far this year, but we still have three more games to play. A. was winning B. has wonC. had won D. wins
标准答案是：B.
本题分析：现在进行时。 由时间状语so far this year(今年到目前为止）决定。
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