Read the article about bears. Choose the best word A, B or C for each gap 1-9. There are many different types of bears 17) __ North America. For example, there are lots of black bears living there, but 18) __ knows exactly how many there are. There could be 19) __ 600,000 and 750,000, and strangely not 20) __ of them are black in colour. They can be brown or 21) __ white.
Bears mostly sleep 22) __ the cold weather in winter, so they are very hungry when they wake up. They eat a lot of different things, such 23) __ leaves and fruit, and many people say they also love eating honey. Bears are very good 24) __ climbing trees, and baby bears 25)__ to climb when they are very young.