1 . The old man got his bachelor's degree __________ the help of his teachers and classmates.

A．rather than	B．in addition
C．with the hope of	D．thanks to

2 . Sherlock Holmes is famous ____ a detective as he is known ___ everybody ____ his quick thinking and careful observation.

A．as; to; for

B．to; for; by

C．for; to; as

D．to; as; for

3 . The new product is beyond all praise and has quickly taken over the market ________ its superior quality.

A．in terms of	B．on account of
C．on behalf of	D．on top of

4 . The new product is beyond all praise and has quickly taken over the market ____ its superior quality.

A．in terms of

B．on top of

C．on behalf of

D．by virtue of

5 .      what you had said, the little girl left the office angrily without saying a word.

A．Because	B．Because of
C．Since	D．For the reason

6 . ________ my teachers’ help, I wouldn’t have made such great progress.

A．Thanks to	B．But for
C．In terms of	D．With regard to