___________ from space, the earth looks like a blue ball.
Last Thursday when I got to the airport, I ____I had left my ticket at home.
There are two new buildings near the sea, and ____of them are very tall.
The boy ____won the first prize is called Roy.
---_____? ---I don’t feel very well today. I’ve got a pain here.
Last weekend many people went to the concert, ____young people.