The book was boring, it wasn't ________ to me．

A．benefit

B．benefited

C．benefiting

D．of benefit

The ________ marine organisms take ________ the density of water is great．

A．use of

B．advantage,with

C．disadvantage of

D．advantage, of

I tried to call on you last week but your dog simply ________ not let me come throgh the gate．

A．could

B．would

C．might

D．should

We agreed to accept ________ they thought was the best tourist guide．

A．whoever

B．whomever

C．whatever

D．whichever

He has put up a private company, but he ________ in the college for about 15years．

A．works

B．has been working

C．worked

D．had worked

－Why didn't you go fishing with your friends yesterday?

－Well, fishing is a hobby which ________ a great deal of patience, which I don't have．

A．calls in

B．calls for

C．calls up

D．calls on

Everyone arrived Late at the party, for ________ reasons．

A．a number of

B．a great deal of

C．a variety of

D．Large guantities of

_______ by the rising price of gas, many car owners use their cars less frequently．

A．Driven

B．Being driven

C．To drive

D．Having driven

When running around the corner, Mike was in ________ with another boy．

A．contact

B．connection

C．collision

D．conflict

I really don't know ________ I had my money stolen．

A．it was where that

B．when was it that

C．where it was that

D．that it was when