What time do you have to start to work?
I must go now. Bye-bye.
We aren't allowed to wear shorts at the University.
We can't do what we want.
You mustn't smoke here. It's against the rules.
I don't have to do the washing and ironing because my mother does it for me.
My mother has to work hard six days a week.
By, of, in, to, from, to, of, in, of, to, of
1 - We were planning
2 - were studding hard
3 - were you doing
4 - I was working
5 - was taking
1) It is not very hot today.
2) It is not foggy today.
3) It is not windy today.
4) It is not rainy today.
5) It is not dry today.
6) It is not snowy today.
7) It is cloudy today.
8) It is pleasant today.