—Hi Bob. I hear that you are working in a big company.
—Quite right. I _______ there for nearly a year.
| A．have worked | B．have been working |
| C．worked | D．had worked |
If we can___our present difficulties,then everything should be all right.
| A．come across | B．get over |
| C．come over | D．get off |
People try to avoid public transportation delays by using their own cars,and this___creates further problems.
| A．in short | B．in case |
| C．in doubt | D．in turn |
She devoted herself___to her research and it earned her a good reputation in her field.
| A．strongly | B．extremely |
| C．entirely | D．freely |
If the firms failed to make enough money,they would______.
| A．close down | B．call off |
| C．turn down | D．set off |
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 |