Do you know if ______ back next week?If he _______ back, please let me know.
— 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.