Can you tell me ________?
| A．what are they doing that for | B．why they are doing for |
| C．why are they doing that | D．what they are doing that for |
People less tolerant of smoking in public places these days.
| A．become | B．have become | C．will become | D．are becoming |
When comes to baseball, Dorothy knows little about it.
| A．this | B．that | C．it | D．one |
Drive straight ahead, and then you will see a to the Hefei - Nanjing Expressway.
| A．sign | B．mark | C．signal | D．board |
-"I’m afraid I must be going now. I ’ 11 come to see you before long.
| A．That’ s OK | B．Go slowly | C．No problem | D．Take care |
It’ s wise choice to use a four wheel drive car on snowy day.
A. a； a B, the； / C. /; a D. the； /the