Do you know ________? – Oh, I know he was born in 1929.

Daniel found ___ easy to finish writing the report on wildlife.

The show Dad, Where Are We Going is really _______ , and it is a hit program on Hunan TV.

Volunteering our time to help people ________ a good way to _______our free time.

The ancient penguin was modern ones and it was good at swimming but couldn’t fly.