Use the correct form of"could and had to" нужно
1. In some schools students … mix with the opposite sex.
3. Nurlan hurt his leg, so he … walk very fast.
4. Our teacher was strict. We … take tests every week.
5. My car was broken, so I … take a taxi to work.
6. The boy fell into the river, but fortunately we … rescue him.
8. We wanted to go to the cinema but we … get the tickets.
9. Our meeting was delayed, so I … get up early.
10. When I was a child I … see much better, but last year I … start wearing glasses.​