Here are some drilling exercises to practise modals mustn't and don't have to with some information on the usage of these modals.

No keys.

Presentation on the go

Exercise 3 shows the difference between the modals by looking at similar sentences in different contexts.

mustnt-dont-have-to-grammar-drills_136874.ppt

Mustn't Don't have to

mustnt-dont-have-to

Let's do English ESL general grammar practice. Here are some drilling exercises to practise modals mustn't and don't have to with some information on the usage…