Bird flu , a contagious disease of animals , is believed ____ by viruses that normally infect only birds and less commonly pigs , and rarely humans .

       A．caused     B．being caused    C．to be caused    D．to have caused

—Did you know more about the mine accident?

—Oh, sorry, I had no idea. I ____the Rescue Center now.

A. will be phoning B. am to phone             C. will phone                D. phone

He is _______ a good teacher. He is also his students' good friend.

A. no more than          B. not more than         C. no less than     D. more than

He left _____with the secretary that he would call again in the afternoon. He said he would keep ______.

       A．words; his words   B．word; his word  C．word; word   D．the word; his word

Are the parents who let their child who is ______ walk in the dark alone at night considerate?

   A. young enough        B. too young to        C. not old enough to             D. so young

A long time _________ a person, which is really a truth.

       A．examines  B．checks      C．tests  D．experiments

---How do you like the film?  

---There was nothing special--- it was only ____.

A. average      B. usual        C. normal      D. common

Tom doesn’t want to take part in any school activities,________.?

      A.and David doesn’t too?                                B.and David doesn’t either?

C.and so doesn’t David?                                  D.and either does David?

This kind of fried chickens sells ______, mainly because it tastes ______.   

       A. well; good                     B. good; well

C. to be good; well             D. to be well; good

Many people have been ill with a strange disease these days, _______ we’d never heard of before.

       A. one                          B. that    C. it                                 D. this