◎ 题干
You should have put the milk in the ice box. I expect it _______ undrinkable by now.
[     ]
A. became
B. had become
C. has become
D. becomes
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“You should have put the milk in the ice box. I expect it _______ undrinkable by now. [ ]A. becameB. had becomeC. has becomeD. becomes…”主要考查了你对  【现在完成时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。