Why haven't you finished your homework yet? You___________ to have finished it by last Sunday.
| A．are supposed | B．were supposed |
| C．are supposing | D．were supposing |
Susan came to the party yesterday, but it was already half past eight ______she turned up.
| A．that | B．before |
| C．until | D．when |
With all the work on hand, I ______to the cinema last night. How I regret it!
| A．shouldn’t have gone | B．might have gone |
| C．can’t have gone | D．must have gone |
The two researchers originally set out to study the zebras in Africa and discovered a new species of tiger ______.
| A．by chance | B．in addition |
| C．by nature | D．in need |
The police warned that anyone ______guilty of taking drugs in that country would be put in prison.
| A．to find | B．found |
| C．finding | D．having found |
–Have you listened to ______ weather forecast, Linda?
–Yes. It says that there will be ______ heavy rain this weekend.
| A．the; the | B．a; the |
| C．the; a | D．a; a |