You return the book now. You can keep it until next week if you like.
| A．have to | B．can’t | C．mustn’t | D．needn’t |
It’s necessary for you _____ exercise every day.
| A．taking | B．to take | C．take | D．takes |
—I _______ here since I was five years old.
| A．lived | B．have lived | C．live | D．was living |
The Greens _____ China for seven years.
| A．have come to | B．have been to |
| C．have come in | D．have been in |
Maria and Tony ____English girls.
| A．are all | B．are both | C．all are | D．both are |
Do you mind _______ the windows?
| A．to open | B．opens | C．opening | D．opened |