单项选择题

If we ______ sooner, we might have got there.

A．started
B．had started
C．would have started
D．start
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单项选择题
What a lovely day, ______
A．doesn't it
B．isn't it
C．hasn't it
D．won't it
单项选择题
The film was worth seeing. I regretted ______ it.
A．to be missing
B．having missed
C．to miss
D．to have missed
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