Modal auxiliary verbs can, may, must - exercise 1
Rewrite the sentences and use the verbs in positive forms (can, may, must) or negative forms (cannot, must not, need not).
Read this book!
You must read this book.
There's no need to book a room.
We needn't book a room.
Modal auxiliary verbs exercises with answers, PDF worksheets and grammar rules with examples for beginners - pre-intermediate learners of English as a foreign language.