My boss______for Beijing in a few days. Do you know when his plane______?
| A．leaves; takes off | B．is leaving; takes off |
| C．is leaving; is taking off | D．leaves; is taking off |
The manager is talking with his secretary _____ the telephone. They usually keep in touch _____ telephone.
| A．by ;on | B．through; by | C．on; on | D．by ;with |
These two houses are similar _____ they both have a large garden with many kinds of flowers.
| A．to that | B．in which | C．in that | D．to which |
—Would you like to come to dinner tonight？
—I’d like to, ___ I’m too busy.
| A．and... | B．so |
| C．as... | D．but |
—I don’t like chicken _______ fish.
—I don’t like chicken, _______ I like fish very much.
| A．and, and... | B．and, but |
| C．or, but... | D．or, and |
We were just about ready to leave _____ it started to snow.
| A．when | B．before |
| C．after | D．since |