Answer Key
Exercise 3
You have already visited this section on 2015-02-22 at 14:10.
Choose the correct modal verbs and fill in the correct form of the verbs in brackets. Example: (CAN'T / MUSTN'T)…She _______ (SEE) me. She was looking to the other side. >>>> She can't have seen me.
- (CAN'T / DIDN'T NEED)... They [can't have heard, cannot have heard] (HEAR) us. We were speaking quietly.
- (SHOULDN'T / COULDN'T)... You [shouldn't have told, should not have told] (TELL) about it. That was silly.
- (HADN'T / DIDN'T HAVE)... I [didn't have to study, did not have to study] (STUDY) so much! The teacher got sick and the test has been cancelled.
- (COULD / BE ABLE TO)... You [could have killed] (KILL) us all! Why were you driving so fast?
- (MAY / CAN)... They [may have left] (LEAVE) early in the morning.
- (SHOULD / WOULD)... You [should have done] (DO) it yourself! It would have been much better.
- (MUST / HAVE TO)... He [must have been] (BE) there. I'm sure. I saw his car.
- (MUST / HAVE TO)... It [must have been] (BE) love, although we broke up after one week.
- (MUST / HAD)... We [had to work] (WORK) on the report all night. The deadline was the next day.
- (COULD / BE ABLE)... You [could have stayed] (STAY) at my place. Why did you pay for a hotel?