—Sorry, I have to now. It’s time for class.
—OK. I’ll call back later.
| A．hang up | B．break up |
| C．give up | D．hold up |
He used to teach in that university and I _________ ride past it on my way to work.
| A．would | B．could | C．should | D．might |
On Sundays when I was a child, Father and I _______ get up early and go fishing.
| A．could | B．would | C．might | D．should |
—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 |