单项选择题

—Sorry, do you mind if I smoke here —Yes, ______.

A．you could
B．go ahead
C．I do
D．my pleasure
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单项选择题
The new library building______last week.
A．was completed
B．is completed
C．completed
D．has completed
单项选择题
—It’s really hot today. What drinks do we have in the fridge —We have some______.
A．noodle
B．cheese
C．sausages
D．lemonade
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