Yesterday he ____ kites with his classmates in the field.
There is lots of interesting work to do here, so I _____ feel bored.
--_______ are you going back to London, Tony?---At the end of July.
Thanks to better health care, more people are living _____ lives today than before.
The Science Museum is popular because people _____ do experiments there.
In America, you can open your presents immediately. You don’t have to ______!