Without the ‘ greenhouse effect’, the earth ____ be about thirty-three degrees Celsius cooler than it is.
| A．should | B．would | C．will | D．must |
If only I had got up a little earlier this morning! I the bus by only a minute and waited half an hour for another.
| A．was missed | B．have missed | C．miss | D．missed |
Mary is a humorous and warm-hearted woman and that isshe is a most popular person in her community．
| A．why | B．because | C．how | D．whether |
The number of foreign students attending Chinese universitiesrising steadily since1990.
| A．is | B．are | C．has been | D．have been |
Well, you know, English is my . So it is my best choice.
| A．talent | B． strength | C．ability | D．skill |
Jim went to answer the phone., Harry started to prepare lunch.
| A．Meanwhile | B．Nevertheless | C．Besides | D．However |