is a problem in all places around the world —in developing and developed countries. (食品安全)
Students are encouraged to discuss (自由地) about what they think.
At my first art show,a famous professor praised me and (鼓励)me to keep trying and make more wonderful pictures.
The old man lives (独自).So he feels lonely.Let's go to visit him.
I'm (骄傲)to help people see again.
He has a special (能力)to write with two hands at the same time.