---They said to us, “Are you afraid to leave this house ?”
---They asked us afraid to leave house.

A.
that were we…this
B.
that we were…that
C.
if were we …this
D.
if we were…that

— Is there any possible way to help the children get rid of such a bad habit?
— To be honest, it’s very hard, but we ______on this problem

A.
work
B.
worked
C.
are working
D.
were working

We should take good care of the elderly, as they are ______ to the sudden change of weather.

A.
sensitive
B.
anxious
C.
weak
D.
positive

—Do you like traveling?
—Sure. I _ to Australia six months ago, but I _ anywhere since then.

A.
went; didn’t go
B.
have gone; haven’t been
C.
went; haven’t been
D.
went; hadn’t been

I called you up last night but I couldn’t ______.

A.
get through
B.
ring back
C.
ring off
D.
hang on

You must have waited here for a long time, ______?

A.
mustn’t you
B.
needn’t you
C.
didn’t you
D.
haven’t you

H1N1 control and prevention is a to China as well as the whole world．

A.
surprise
B.
challenge
C.
reaction
D.
threat

---I wonder why the thinnest plastics bags, though ______ , are still in use here.
---Well, it’s no easy job to solve this problem effectively.

A.
banning
B.
banned
C.
to ban
D.
having banned

—Can you help me download some popular songs from your computer?
—______, but I must finish typing the article first.

A.
I’d love to
B.
I’m afraid not
C.
Certainly not
D.
Never mind

The father as well as his three children ______ skating on the frozen river every Sunday afternoon in winter.

A.
is going
B.
go
C.
goes
D.
are going

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