单项选择题

______it is long after dark, he is still wearing black sunglasses.

A．If
B．Although
C．Unless
D．Even
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单项选择题
The manager gave her his word that her complaint______be investigated soon.
A．will
B．must
C．should
D．would
单项选择题
I hope that you’ 11 be more careful in typing the letter: don’t______anything.
A．lack
B．withdraw
C．omit
D．lose
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