问题
选择题
--This is no-smoking zone. Can't you see the sign?
----Oh, sorry. I ______ it.
A．haven't seen
B．won't see
C．don't see
D．didn't see
答案
答案：D
题目分析：句意：这是无烟空间，难道你们看到标志吗？回答，对不起，我刚才没看到。强调刚才的动作用过去式，结合句意，故选D
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