As a result these endangered animals may even .
| A．die away | B．die down | C．die out | D．die off |
____fire, all exits must be kept clear.
| A．In place of | B．Instead of | C．In case of | D．In spite of |
—Where’s that report?
—I brought it to you ____you were in Mr. Black’s office yesterday.
| A．if | B．when | C．because | D．before |
This is a junior school. You should go to a senior school girls of your age.
| A．for | B．about | C．from | D．to |
Some people choose jobs for other reasons _____money these days.
| A．for | B．except | C．besides | D．with |
_____he had not hurt his leg, John would have won the race.
| A．If | B．Since | C．Though | D．When |