Dave has ___friends here, so he often stays at home by himself and feels lonely.
Paper is made ___wood, and wood is made ___paper.
We all think___ interesting to climb the mountain in such a sunny day.
The movie <<Mr Bean>> is a comedy.
Now we can see many trees on sides of the road.
-Are they from Canada?-No,they_____.A. are B. aren't C. isn't