He was so cold, he seemed so proud, ________ every time she met him, she experienced a kind of emotional electric shock.
| A．after | B．since | C．yet | D．for |
At minus 130℃, a living cell can be ______ for a thousand years.
| A．spared | B．protected | C．preserved | D．developed |
If we can ____ our present difficulties, then everything should be all right.
| A．come across | B．get over | C．come over | D．get off |
.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 |
The news of the mayor’s coming to our school for a visit was __ on the radio yesterday.
| A．turned out | B．found out | C．given out | D．carried out |