III. Complete the sentences with the right modal verb (have to, should, must): 1. You see this film if you want to, I think it’s OK.
2. You (not) carry that parcel home yourself; the shop will send it.
3. Mother to child: You (not)tell lies.
4. You (not)bring an umbrella. I have one for you.
5. Park notice: All dogs be kept on leads.​