— I hear Prof.Huang will give us a talk ______ the History of Diaoyu Islands this weekend.— That’s great!A. on B. to C. at
It’s very cold outside. You put on your coat when you go out.
I don’t know how to learn English well. Will you please give meon it?
I will call you he comes.
Don’t eat salt, It’s bad for your health.
, young man? --------I have a toothache.