Ex2: Choose the best answer:
1. My father is a worker. He is (working/ works) in the factory now
2. Tom is (reading/ reads) a newspaper in his room at the moment.
3. I am (riding/ ride) a bike every day.
4. I (am doing/ do) my homework and my sister is cooking/ cooks dinner at the moment.
5. We (are going/ go) to school on Mondays.