If the weather had been better，we could have had a picnic．But it all day．
| A．rained | B．rains | C．has rained | D．is raining |
Yesterday I tried to call you several times but I couldn't __________ to you.
| A．call up |
| B．ring up |
| C．get through |
| D．go through |
—How did you like the lecture tonight?
—Very __________. I doubt if I will come to this kind of lecture next time.
| A．encouraging |
| B．encouraged |
| C．disappointing |
| D．disappointed |
—I'm going to the concert tonight.
—I'm likely to go out too. Bring the keys with you __________ I'm out.
| A．if |
| B．when |
| C．in case |
| D．as |
The application of media __________ education is beneficial __________ the students.
| A．on; on |
| B．to; to |
| C．about; to |
| D．to; of |
Most of the people __________ to the party were famous scientists.
| A．invited |
| B．to invite |
| C．being invited |
| D．inviting |