Did ____ on time make her teacher angry?
The doctor couldn’t answer the question _____ the patient could survive that night.
---I got up at five this morning, I thought it was Friday.---You _____ so early. It is Sunday today; you don’t have to go to work.
He says he really can’t _____ to wait another day.
---I can’t recite the poem. ---Well, you are supposed _____ it many times yesterday evening.
---May I surf the Internet tonight? --- No, you ______. You must do the exercises.