Grammarway 3 Unit 5 Modal Verbs
10 Rephrase the following sentences in as many ways as possible.
1 Laura may/might/could have left the phone off the hook.
2 Surgeons have to/must scrub their hands before operating on patients.
3 May/Might/Can/Could I open the window, please?
4 Peter didn't need to/have to wash the dog, so he didn't.
5 Emily was able to reach the top shelf, even though she didn't have a ladder.
6 You mustn't/can't/may not copy files without the manager's permission.
7 We could/can spend this evening at home. / Shall we spend this evening at home?
8 Patrick must have misunderstood my instructions.
9 Helen can't have known about her surprise party.
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