. 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 |
He convinced me ______ the difficulty of the work.
| A．on | B．at | C．for | D．of |
.If you are unable to attend the interview, for __________reason, you should inform us immediately.
| A．no matter what | B．whatever | C．however | D．no matter how |
You should write it in a style which is__________to your subject.
| A．accurate | B．attractive | C．appropriate | D．available |
From the look on his face , I knew that the end had come, one way or_________.
| A．another | B．others | C．other | D．the others |
It’s a pity that you________leave so soon. It’s been so nice having you here.
| A．should | B．could | C．can | D．might |