This worksheet consists of 20 pictures and 20 sentences with gaps. The students have to complete the sentences with the affirmative, interrogative form to express obligation and the negative (don't/doesn't have to) from to express lack of obligation. The key to the exercise is included. Hope it's useful!
![[Have To / Don't Have To] Practice](https://busyteacher.org/uploads/posts/2012-01/thumbs/1327441497_pres.jpg)
![[Have To / Don't Have To] Practice](https://busyteacher.org/uploads/posts/2012-01/1327441497_pres.jpg)
