1. You don’t have to hurry. We have plenty of time.
2. You must remember to write the report. The boss will be furious if you forget.
3. The exhibition was free so I didn’t have to pay.
4. Do you have to wear a uniform at your school?
5. We had to wait two hours at security and nearly missed our flight.
6. Did you have to do a lot of homework when you were at school?
7. I think people who live in flats shouldn’t have dogs.
8. She’s allergic to dairy products so she mustn’t eat anything made from milk.
2. He told me he had already paid.
3. It is the second time she has made that mistake.
4. Nora looked wonderful after she had lost a few kilos.
5. Fred had phoned me before I left home.
5. When the police arrived, the car had gone.
1. Past Simple; Past Perfect.
2. Past SImple; Past Perfect.
3. Present Simple; Present Perfect.
4. Past Simple; Past Perfect.
5. Past Perfect; Past Simple.
6. Past Simple; Past Perfect.