单项选择题

Anyone can borrow books from the library ______ he has a library card.

A．since
B．so long as
C．even though
D．unless
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单项选择题
I'm sorry to have spent so much money. I wish you ______ so.
A．hadn't done
B．didn't do
C．haven't done
D．won't done
单项选择题
I had to tell the truth, ______
A．didn't I
B．wouldn't I
C．hadn't I
D．shouldn't I
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