It is not___to discuss the question again and again
| A．worth |
| B．worthy |
| C．worthwhile |
| D．of worth |
Jane was dressed in red ______ Joe was dressed in blue.
| A．however | B．when | C．while | D．as |
---- Did you watch the football match yesterday?
---- Yes, I did. You know, my brother ______ in the match at that time.
| A．is playing | B．was playing |
| C．has played | D．had played |
---- Ann is in hospital.
---- Oh, really? I ______ know. I ______ go and visit her.
| A．didn’t; am going to | B．don’t; would |
| C．don’t; will | D．didn’t; will |
I was out of town at that time, so I don’t know exactly how it ______.
| A．was happening | B．happened |
| C．has happened | D．happens |
The number of foreign students attending Chinese universities ______ rising steadily since 1990.
| A．have been | B．are | C．has been | D．is |