Modal AuxiliariesModal Auxiliaries

Rewrite the sentences using the correct form of the verbs in brackets.

1. I'm certain you left your umbrella on the train. (must)


2. Perhaps Larry went to bed early. (might)


3. Perhaps the drawings at Nazca were done by beings from outer space. (could)


4. It's impossible that the money was stolen last night. (can't)


5. Perhaps the Nazca desert was used as an ancient airfield. (may)


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