1. You must pay the bills today. – I know. I promise I won’t forget.
2. Shall we go to the beach tomorrow? – Yes. That’s a great idea.
3. I’m going to the cinema. Do you want to come with me? – No, thank you. I have to do my project on Chemistry.
4. You mustn’t put that shirt in the washing machine. – I know. It has to be dry-cleaned.
5. Was the suitcase very heavy? – Yes, but I ought to carry it by myself.
6. Can you drive? – Yes, but I haven’t got my own car.
7. I could/ ride a bicycle until I was eight. – Neither could I.
8. Would you open the door for me, please? – Yes, certainly.
9. I saw Tina in town last night. – You can’t have seen her. She’s on holiday in Spain.
10. Where’s Colin? – I’m not sure. He might be in the study.
11. I feel very tired today. - You shouldn’t have stayed up so late last night.
12. Did you phone Alan yesterday? – No. I didn’t need to. He came round to see me.
2)No, I didn't
3) Yes, I went to the cinema yesterday.
4) No I didn't go to the cinema yesterday.