Helping others is a habit, _______ you can learn even at an early age.
| A．it | B．that | C．what | D．one |
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 |
Better go to see my sick colleague right now, ________I?
| A．hadn’t | B．didn’t | C．don’t | D．won’t |