As teachers, we feel______our duty to teach our children to be good wherever we are.
| A．this | B．that | C．it | D．there is |
According to Beijing Review，Beijing was attacked by such a sandstorm few citizens have experienced before．
| A．which | B．that |
| C．when | D．as |
The customer and the seller argued for quite some time before they finally agreed the price．
| A．on | B．with |
| C．to | D．at |
——Is there a bullet train to Chengdu this afternoon?
——There be．I’ll phone the station to find it out．
| A．must | B．can |
| C．might | D．would |
At this time tomorrow over the Atlantic．
| A．we’re going to fly |
| B．we’ll be flying． |
| C．we’ll fly |
| D．we’re to fly |
．——May I look at the menu for a little while?
——Of course， ，sir．
| A．don’t worry |
| B．it doesn’t matter |
| C．enjoy yourself |
| D．take your time |