The boy is good ___ learning English and he does well ___ it.
.Mr. Black has been teaching English in a middle school _____ he came to China.
I know you are very ____ice-cream, but you will gain weight if you eat too much.
I don’t think she is a nice woman; I am _____ her empty talk.
_____ your classmates and you will make more good friends.
—What’s the matter with you, Sandy?—I’m _____ a bad cold. I think I am dying.