________his telephone number, she had some difficulty getting in touch with Bill.
A. Not knowing B. Knowing not
C. Not having known D. Having not known
You needn’t pay, it’s _____.
A. nothing B. free C. no more D. busy
Tom kept quiet about the accident __________ lose his job.
A. so not as to B. so as not to C. so as to not D. not so as to
What is for dinner? I am s_________.
Most brids find it safe to sleep in the trees，but they have eggs or young chicks，they
don’t use a nest.
A.why B.how ? C.unless D.where
According to the traffic laws, drivers are not allowed __.
A. to drink B. drinking C. to be drinking D. drank
We had a picnic last term and it was a lot of fun, so let’s have
one this month.
A. another B. some C. the other D. other
The young girl sitting next to me on the plane was very nervous.She before.?
A.hasn’t flown B.didn’t fly?
C.hadn’t flown D.wasn’t flying
Hua Lian Department Store will____some people as its workers.
A. employ B. demand C. reserve D. inspect
As we all know, there are four important i________ in ancient China.