---- What are they doing？
---- Look, they ________ on the playground.
A. are running B. runs C. is running
--- How ____ you, Bill?
-----I ____ fine, thanks!
| A．is； am | B．are； is |
| C．are； am | D．is； are |
Only then_______ his mistakes.
| A．he realize |
| B．did he realized |
| C．did he realize |
| D．he realized |
___________ that a new zoo will be built in our town.
| A．That’s said | B．It is said |
| C．This is said | D．It said |
----- Does she like singing English songs?
------Yes.She _______ to sing English songs in her room.
| A．often does | B．is often heard |
| C．often hears | D．heard |
What kind of music do you like?
----- I like music ________ I can dance to.
| A．because | B．when | C．who | D．that |