1) You mustn't go out. It is raining heavily.
2) Your room is untidy. You must do it.
3) Jane, you're ill. You must stay in bed.
4) Bob has a high temperature. He mustn't go to school.
5) It's eleven o'clock. Betty must go to bed.
6) Jill has a bad tooth. She mustn't eat much chocolate.
7) You mustn't play in the street. It's dangerous.
B. Use have/has to or don't/doesn't have to.
1) You have to be nicer to your parents.
2) I don't have to go home. Nobody is waiting for me.
3) He has to feed the dog at 6 p.m.
4) You don't have to phone him. He knows everything.
5) She doesn't have to cook dinner. We are going out tonight.
6) She is very thin. She has to eat more.
Students are reading this book now.
Students have read this book.
Students have been reading this book.
Students read this book.
Students were reading this book.
Students had read this book.
Students had been reading this book.
Students will read this book.
Students will be reading this book.
Students will have read this book.
Students will have been reading this book.
Не знаю всей сути задания, если нужно будет ещё уточнить промежуток времени, то тут уже сам в конце нужное подставь, но сами времена расписаны выше.