Finding information in today's world is easy．The ________ is how you can tell whether the information you get is useful or not．

A．ability

B．competition

C．challenge

D．knowledge

The bad policy of the new government has put the economy of the country into a more difficult ________．

A．occasion

B．situation

C．case

D．background

The young man ________ in studying paid no attention to the outside world．

A．involved

B．involving

C．to be involved

D．being involved

－Why did the police take him away?

－Because he was ________ stealing．

A．accused for

B．accused to

C．accused of

D．accused at

Compared to other students, he is ________ student．

A．a most satisfied

B．a most satisfying

C．a more satisfying

D．the more satisfying

Only when I left my parents for Italy ________ how much I loved them．

A．I realized

B．I had realized

C．had I realized

D．did I realize

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

Between the two rows of trees ________ the teaching building．

A．stand

B．stands

C．standing

D．are

She ________ the knowledge of English by careful study．

A．acquired

B．finished

C．concluded

D．achieved

Don't try to drive in a snowstorm as you may lose ________ of the road．

A．view

B．sight

C．eye

D．vision