问题
选择题
—Don't use my handkerchief to wipe the table，gentleman.
—Oh, I' m very sorry.I________clearly.
A．didn't see
B．hadn't seen
C．wasn't seeing
D．can't see
答案
答案：A
答案 A [根据语境可知此处表示“刚才没看清楚”，应是过去的动作，因此应用一般过去时。]
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