Lily, my partner, is usually friendly to others, but she___ get into bad temper sometimes.
| A．must | B．should | C．may | D．can |
How lucky he was! He ____ involved in the murder.
| A．must have been | B．can have been | C．could have been | D．would have been |
--Excuse me, you are supposed to hand in your design now.
--I’m sorry, my computer broke down, or I ________ it last night.
| A．finished | B．would finish |
| C．had finished | D．would have finished |
The board considered it urgent that those files _____ right away.
| A．be printed | B．will be printed |
| C．must be printed | D．had to be printed |
More and more people have come to realize that if we had taken effective measures much earlier, the air quality ______ so seriously now.
| A．is not polluted | B．would not be polluted |
| C．had not been polluted | D．would not have been polluted |
Thank you very much. Without your help we ______ car started.
| A．didn’t get | B．hadn’t got | C．couldn’t get | D．couldn’t have got |
Without the leadership of the Party, there ____no New China.
| A．would be | B．has been | C．should be | D．was |
If it __________for the snow, we ___________the mountain yesterday.
| A．were not; could have climbed | B．were not; could climb |
| C．had not been; could have climbed | D．had not been; could climb |
To qualify yourself for this kind of new job, I recommend that you ________ some online courses.
| A．to take | B．take | C．taking | D．would take |
The manager of the hotel requests that their guests ______ after 12:00 p.m.
| A．not to play loud music | B．not play loud music |
| C．don’t play loud music | D．couldn’t play loud music |