New York is known ________ the world ________ a busy trade centre.
| A．for； as | B．for； by | C．by； as | D．by； for |
—Are you doing your homework？
—________．
| A．Yes，I am |
| B．Yes，I’m not |
| C．Yes，I like it |
| D．No，I am |
Zack is ________ newspapers，his mother is ________ TV and his brother is ________ a film．
| A．reading；watching；seeing |
| B．reading；watching；watching |
| C．seeing；watching；seeing |
| D．watching；seeing；reading |
I have two books．One is for you，and ________ is for her．
| A．another |
| B．other |
| C．the other |
| D．others |
—Mum，it’s late．Why are you still here？
—Dad hasn’t come back yet．I ________ for him．
A．am waiting
B．was waiting
C．waited
It’s 8 o’clock．The students ________ an English class．
| A．have |
| B．having |
| C．is having |
| D．are having |