. As a teacher, he has never given his students so difficult a problem ____ they can’t work out.
| A．if | B．that | C．when | D．As |
As time went by, the plan stuck ______ fairly practical.
| A．to proved | B．to proving | C．proved | D．to be proved |
Recently some Japanese have been trying to make conflicts with China, ________ attempts we are concerned.
| A．whose | B．with which | C．about which | D．about whose |
--Jack had prepared for the game for such a long time. We all thought he ________ it.
-- What a pity! He ________ too nervous when playing it.
| A．would have won；had been |
| B．could have won；must be |
| C．could have won；was |
| D．would have won；has been |
When________ to danger and conflict, men tend to increase blood pressure, ________ nervous and anxious.
| A．exposed ；felt | B．exposing ；felt |
| C．facing ；feeling | D．exposed ；feeling |
--I hope you liked the movie last night.
--How on earth do you know I went to the cinema? I ______you.
| A．haven’t told | B．hadn’t told |
| C．didn’t tell | D．wouldn’t tell |