I felt it hard to keep up with my classmates. But when I want to _____, my teacher always encourages me to work harder.
My brother is _____boy. He is very like my father.
I can’t play the guitar ____ the violin, and he can’t play them, .
--How long ____ it take him ____ home? ---It takes about 15 minutes.
---How does your father go to work? ---He often goes to work____ his car every day.
Scott works at a radio station. He thinks _____ .