1 . That was in the days before electricity was available at the flick of __________ switch. (用适当的词填空)

2 . ________ big fire broke out in my neighbor’s house last night，and it took the firefighters about an hour to put out the fire.(用适当的词填空)

3 . Jumping out of _______airplane at ten thousand feet is quite _______exciting experience.

A．the, 不填	B．不填, an
C．an, an	D．the, the

4 . Last year I had ______ narrow escape from a car crash, and I don’t want to risk my life ______ second time.

A．a; a

B．the; a

C．the; the

D．a; the

5 . Some experts say ____ birthrate of China, after the one-child policy is relaxed, can see ___ modest increase in future.

A．the, a

B．a, a

C．a, /

D．the, /

6 . —How do you find the guy who took ________ office last week?
—He’s always finding ________ fault with others.

A．/; a	B．the; a
C．/; /	D．the; /

7 . Christmas is _______ special holiday when _______ whole family are supposed to get together.

A．the; the

B．a; a

C．the; a

D．a; the