1) writing
2) is
3) hate
4) do not want
5) is playing
6) are running and laughing
7) do not ask
8) are having
9) like
10) see
11) is
12) am
Mary has to go to school by bus, so she leaves home at 8 o'clock . Yesterday I had to get ready for my English exam. Last week my friends had to stay at school after classes.
Tomorrow he has to go to bed at 9 o'clock.