If human beings had been a bit less greedy and cruel, more birds and animals dying out.

A. ought to avoid                     B. could have been avoided

C. should have avoided                D. might have avoided

You____________ television. Why not do something more active?

A. always watch                  B. too small a car

C. have always watched           D. have always been watching

___________lessons were not difficult.

A. Our few first short English           

B. Our first few short English

C. Our few first English short           

D. Few our first English short

For many Beijingers, dreams of living in ___________ green area are becoming___________ reality.

A. a; a          B. the; the      C. 不填;不填       D. 不填;a

I've visited a lot of different places and stayed in lots of different hotels, but none of them___________ this one.

A. makes       B. beats      C. compares     D. matches

 If you want to see a doctor, fix the date with him ahead of time. This is a common ___________ in the USA.

A. habit     B. law     C. rule     D. custom

While _____ football on tin playground, I found 'my keys ______.

     A. playing, lost    ,   B. play, losing         C. played, being lost   D. having played, lost

The man was seen _____ into the courtyard.

     A, stealing           B. stolen             C. be stealing         D. had stolen

Would you please ______ write on the textbooks?

     A. don't             B. not to            C. not            D. to not

Excuse me for _____ in without ______.

      A. coming, asking    B. coming, being asked  C. to come, asking   D. to come, being asked