It is said that many kids are worried about the year 2012, ________ they think the earth will be destroyed by disasters．

A．when

B．where

C．as

D．which

________ the telephone number several times, but he couldn't learn it by heart．

A．Having told

B．Having been told

C．Although he had been told

D．He had been told

Riding bikes has advantages ________ driving cars ________ many aspects．

A．above; in

B．over; in

C．on; on

D．with; on

The party last night was ________ success．We sang and danced until it came to ________ end at 12∶00．

A．A; an

B．a; the

C．the; an

D．/; an

I didn't know you and she ________, and that you were good friends for ten years．

A．were on good terms

B．were ashamed

C．were concerned

D．were grateful

I think you should do all that is right ________ told．

A．while

B．as

C．though

D．although

I don't like my present work very much, but I care about its high ________．

A．salary

B．force

C．energy

D．strength

He is so clever that he can solve ________ problems by himself．

A．a great deal of

B．a large amount of

C．a series of

D．much

Don't push him too hard．________, he is only a child and he has tried his best．

A．In all

B．Above all

C．After all

D．At all

The police have found enough evidence ________ the murderer did on the scene．

A．what

B．that

C．when

D．how