Curated OER
Mustn't or Don't Have To
In this mustn't or don't have to activity, students fill in the blanks with the words mustn't or don't have to. Students complete 10 sentences total.
Curated OER
Don't Have to and Mustn't Exercise
In this online grammar worksheet, students read the sentences and fill in the gaps with: either, don't, have, to, or mustn't for the 12 exercises.