Tom works very hard. His brother, ______, doesn’t do anything at all.
| A．for another thing | B．what’s worse |
| C．on the other hand | D．even worse |
—Hurry up, Michael! It’s ten to three.—Goodness me! The class_______. I’ll be late again.
| A．must begin | B．may begin | C．should have begun | D．must have begun |
It was playing computer games that cost the boy a lot of time that he __________ doing his lessons.
| A．might have spent | B．ought to have spent |
C．must have spent | D．could have spent |
Professor Smith, many students want to see you. __________ they wait here or outside?
| A．Do | B．Shall | C．Will | D．Would |
Better go to see my sick colleague right now, ________I?
| A．hadn’t | B．didn’t | C．don’t | D．won’t |
I promised to get there before 5 o’clock, but now the rain is pouring down. They ______ for me impatiently.
| A．may wait | B．ought to wait | C．could wait | D．must be waiting |