1. A lot of students go to college every year. My friend's son is at college now, and my son is going to college next year. 2. I don't like playing football, but I often play tennis at work on weekdays, and on the week-end too. 3. Ann's children were in hospital last week. They are at home now, and they are doing very well. 4. "When did you discuss those questions last?" "We discussed them the day before yesterday." 5. Peter is going to hospital for two days. 6. I stayed at home on ten yesterday morning.