My friend’s plane had taken off I got to the airport to see him off.
| A．until | B．while |
| C．after | D．before |
Can you tell me how much___________________?
| A．you pay the book for | B．you spend the book on |
| C．the book take you | D．you buy the book for |
Surprisingly, the performance supposed to be popular ______ to be a great disappointment.
| A．turned down | B．turned up |
| C．turned over | D．turned out |
It ______ we know the result of the experiment.
| A．will not be, before | B．is, since |
| C．will not be, until | D．has been, after |
When______ what his plan for his summer holiday was, he got very excited.
| A．asking | B．being asked |
| C．was asked | D．asked |
---What do you think of his new design?
--- It’s of even practical value than the old one. He’s just a bookworm!
| A．greater | B．great | C．less | D．Little |