--Thousands of people come to visit Qinghai Lake every year.--That's true.It has become our _______.
I can’t findto sit on the crowded bus.
useful invention(发明) the computer is!
When you aretrouble, why not phone the?
You go to see a doctor in a hospital. When he asks you, “What’s your trouble?” You should say “. ”
–Do you like staying at home? --No, I don’t. That always makes me feel.