The teacher told me that the earth _______ round.
It was the building of the rail network from the west to the east coast ________ brought even larger numbers to California in the 1860s.
_______ from the top of the mountain, we found the city more beautiful.
Do you know the stages every inventor must ________ before they can have their invention________ .
The dodo became extinct fairly recently so its DNA is still ________ .
Exactly when the first people arrived in ________ we now know as California, no one really knows.