5. Read and write the sentences (use have to in the correct form).

Solution:

1. I/you/we/they have to recycle cans (it's necessary).
2. He/she/it has to recycle cans (it's necessary).
3. I/you/we/they don't have to go to school on Sundays (it isn't necessary).
4. He/she/it doesn't have to go to school on Sundays (necessary).

Read and write the sentences (use have to in the correct form).