The United Nations is trying to free the world________the threat of war.
| A．at | B．in |
| C．by | D．from |
It’s no use _______ him ______ doing that.
| A．to persuade; to stop | B．persuading; to stop |
| C．to persuade; stopping | D．persuading; stopping |
Mary has been lucky to find a job she loves and, _________, she gets a high salary for it.
| A．what's worse | B．sooner or later | C．as a result | D．what's more |
we decided to spend the night at the foot of the mountain.
| A．With the moon appeared | B．The moon appeared |
| C．The moon being appeared | D．As the moon appeared |
The American Civil War lasted four years the North won in the end.
| A．after | B．when | C．before | D．since |
----Have you any letters _______, sir?
---No, thanks. You may take a rest.
| A．to type | B．to be typed | C．to be typing | D．typed |