The______ look on his face shows that he’s greatly ______.
—You look so worried.What’s the matter? —I don’t know________these boring problems.
—May I have some more coffee,please? —I’m sorry,but there doesn’t seem to be________.
I agree with most of what you said,but I don’t agree with________.
We must keep a positive attitude toward the future______we may encounter some difficulties.
The wrong you’ve done him is terrible,________you should make an apology to him,I think.