He _____ his parents that he has failed in the exam.
We will have a meeting next week, but we don’t know _____.
_____ for your brother, I would not have gone to see Mr. Wang.
—Will you go home tomorrow evening?—No, I’m going to a lecture, or at least I am planning _____.
—Why do you want the book so much? —_____, sir.
----Have you fed the cat? ----No, but______.