1. It's late. I have to go now.
2. We did an exam yesterday . We
had to answer six questions out of ten.
1.We did not want to stay in the town on such a hot day, so we went to the country.
2. It is very late: Go to bed at once.
3. Where is your little sister? - - She is in bed. Mother always puts her to bed at eight o'clock.
4. In summer my mother does not go to work and I don't go to school. We live in the country. My father goes to work every day, so he stays in the town. But sometimes he comes to the country after work and goes back to the town early in the morning, when I am still in bed.
5. In winter I usually go to bed at ten o'clock because I learn at school and have to get up early.
1 have to (present Simple)
2 had to (present continuous)