1. Mr. Smith will               (到达) at our school next Wednesday.
2. Now there is less air               (污染) in our hometown.
3. Many young people like to listen to                (流行) songs.
4. Simon, one of my classmates. Seldom                 (climb) Ziti Mountain.
5. We live in the same building. Our rooms are                (in a higher place than) Mr. and Mrs. Green's.