1. I read every day. I'm reading now
2. He sleeps every night. He is sleeping now
3. The children usually drink milk for breakfast. The children are drinking milk now
4. The boys go to the stadium on Monday. The boys are going to the stadium now
5. The girl plays badminton very well. The girl is playing badminton now
6. I don't sleep in the daytime. I'm not sleeping now
7. My father doesn't watch TV in the morning. My father is not watching TV now
8. The pupils don't eat at the lessons. The pupils are not eating now
9. My granny doesn't work, she is on pension. My granny isn't working now
10. Tom doesn't play hockey every winter. Tom isn't playing hockey now.
A) Colin was swimming in the swimming pool at 3 o'clock yesterday afternoon.
b) My parents were listening to the radio when I came into the kitchen.
c) My sister/brother was watching TV when I phoned them.
d) It was raining when I left the cinema.
e) I was painting a picture at 10 o'clock in the morning.
Nicolaus Copernicus<span> was the first astronomer to formulate a scientifically-based heliocentric cosmology that displaced the Earth from the center of the universe. His epochal book, "De Revolutionibus Orbium Coelestium" - On the Revolutions of the Celestial Spheres - is often regarded as the starting point of modern astronomy and the defining epiphany that began the Scientific Revolution. </span>
<span>Publication of De Revolutionibus </span>
<span>Although Greek, Indian and Muslim savants had published heliocentric hypotheses centuries before Copernicus, his publication of a scientific theory of heliocentrism, demonstrating that the motions of celestial objects can be explained without putting the Earth at rest in the center of the universe, stimulated further scientific investigations and became a landmark in the history of modern science that is known as the Copernican Revolution. Among the great polymaths of the Renaissance, Copernicus was a mathematician, astronomer, physician, classical scholar, translator, Catholic cleric, jurist, governor, military leader, diplomat and economist. Among his many responsibilities, astronomy figured as little more than an avocation - yet it was in that field that he made his mark upon the world.</span>
1) Football matches are played on a pitch.
2) We go swimming in a pool.
3) You can go ice-skating on a rink.
4) Boxing fights take place in a ring.
5) Basketball games are played on a court.
6) In golf, you can play on a 9 or 18-hole course.