You can win prizes in a ___________
contest
It is _______ to think that the Internet is less than 30 years old.
Amazing
A popular video can __________ very quickly on the Internet. In one day, thousands of people can watch it.
Spread
Scientists made a surprising _________: Some 240,000-year-old dinosaur bones in Tanzania maybe the oldest ever found.
discovery
T. rex was a _________ dinosaur. It was about six meters tall.
giant
___________ is a structure that has a roof and walls.
building
___________ is the general line that someone is moving or pointing in
direction
__________ means to begin to exist, or to be able to be seen
appear
___________ is a period of time when you can relax and enjoy yourself, often away from home
vacation
___________ means not in the usual place; possibly lost or gone
missing
