单项选择题

They overcame all the difficulties and completed the project two months ahead of time, ______ is something we had not expected.

A．which
B．it
C．that
D．what
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单项选择题
Dress warmly, ______ you'll catch cold.
A．on the contrary
B．or else
C．or rather
D．in no way
单项选择题
I shall take you back to France ______ you are well enough to travel.
A．promptly
B．quickly
C．presently
D．instantly
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