—Allthelightshavegoneoutintheo

—All the lights have gone out in the office building.
—Yes, they have __________ electricity.

A．cut off

B．cut up

C．cut in

D．cut down

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After the Six-Party Talk in Beijing, an agreement was reached __________ that North Korea would abandon __________ nuclear weapons.

A．stating; to develop	B．stating; developing
C．to state ；to develop	D．states; developing

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There is a new problem involved in the popularity of private cars __________ road conditions need __________.

A．that; to be improved	B．which ； to be improved
C．where ； improving	D．when ； improving

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We've been told the good news, but when and where to go for theexciting paid vacation __________ yet.

A．are not discussed	B．have not been discussed
C．is not being discussed	D．has not been discussed

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In 1948，three American scientists invented __________ transistor, which is __________ small electronic device to control an electric current.

A．the; a	B．a; a
C．the; the	D．a; the

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__________ yesterday, we went out for a walk.

A．As a fine day	B．It was a fine day
C．It being a fine day	D．For it was a fine day

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