单项选择题

Five minutes earlier, ______we could have caught the last train.

A．and
B．but
C．or
D．so
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单项选择题
Sally seldom does her homework in the morning, ______.
A．so does Jerry
B．Jerry is too
C．neither does Jerry
D．Jerry doesn’t too
单项选择题
______we have finished the text, we shall start doing more revision exercises.
A．For now
B．Since that
C．Now that
D．By now
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