Emergency line operators must always _____ calm and make sure that they get all the information they need to send help.
| A．grow |
| B．appear |
| C．become |
| D．stay |
Andrew wanted to find another boy to be his best friend, but Annie told him ___.
| A．not to | B．not to do | C．not do it | D．do not to |
___ I saw her, she was working in a shop.
| A．The last time | B．For the last time. | C．To the last time. | D．In the last time. |
Some of you may have finished unit one. _____, you can go on to unit two.
| A．If you may | B．If you do | C．If not | D．If so |
____ it rain tomorrow, we would have to put off the visit to the Yangpu Bridge.
| A．Were | B．Should | C．Would | D．Will |
— Hello, may I have an appointment with the doctor?
— ___.
| A．Sorry, he is busy at the moment. |
| B．Why didn’t you call earlier? |
| C．Certainly. May I know your name? |
| D．Sorry，he doesn’t want to see you. |