________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

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