David is such a good boy _______ all the teachers like him.
______ good service, the restaurant also offers different kinds of traditional Anhui dishes.
— Darling, hand me the new suit. My coat may be a little casual for the lecture.— Why bother? I think you can go______ you are.
— It’s my treat today. Is there anything particular you would like to have?—______ you choose is fine with me.
— I watched the film you mentioned. Isn’t it cool?— ______. It can’t be ______.
— Why is the chemical plant closed?— Because large quantities of waste water ______ into the Yangtze River.