1. My mother often goes to the market every morning but she doesn't there this morning.
2. When did you have the last medical check-up?
3. Why didn't you take part in the picnic last Sunday?
4. Where is your teacher ? - Heis explaining a new lesson in that class.
5. I picked you up at your hotel in half an hour.
6. We can't go out now because it is raining .