John, you _______ stay out late. Your mother will worry about you.
— I bought the digital camera two months ago.— You mean that you __________ it for nearly two months.
The teacher can _____ believe that Tom studies so ______.
---Would you _____ have tea or wine?---______. I prefer coffee.
There’s _____ wrong with my computer. I’ll have it _____ .
Mr Liu is ____ unusual teacher. He has written _____ useful book for his students.