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單項(xiàng)選擇題

Since the good sare（）stock，they cannot be supplied（）stock.

a.out of，at
b.outside，from
c.without，from
d.out of，ex

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Our firm is with in（）from the airport.

A.thirty minutes’ drive
B.adrive of thirty minutes
C.driving for thirty minutes
D.driving car by thirty minutes

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There has been a positive response to the export promotion（）？

A.hasn’t it
B.hasn’t there
C.doesn’t it
D.has there