Eating habits ____ from country to country. One man’s meat can be another man’s poison.
| A．turn | B．advance | C．spread | D．vary |
—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 |
I won’t call you, ________ something unexpected happens.
| A．unless | B．whether | C．because | D．while |