In 1800s, a group of adventurers(探险家) ______ on their exploring trip. Five days later, they came to what is now known as Quebec.
Determination is a kind of basic quality and this is ___ it takes to do jobs well.
We have the most population in the world, and most of it _______ farmers.
A thief was found ________ the house and steal the pictures last night.
—What about putting some pictures into the report? —A picture is worth a thousand words.
Buses have routes. They _________ and _________people at different places on the routes.