单项选择题

______ is forbidden in the meeting-room but we are allowed ______ in the room for smokers.

A．Smoking, smoking
B．Smoking, to smoke
C．To smoke, smoking
D．To smoke, to smoke
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单项选择题
The foreigners once ______ their products to our company at a ______ higher price.
A．sent, very
B．lent, still
C．sold, much
D．showed, more
单项选择题
Just then he ______ that the hen ______ three eggs a day.
A．lied, lay
B．lied, laid
C．lay, laid
D．laid, cay
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