—How often do you see your grandparents?
—_______.
A. Five days B. Once a month C. In a week
— I broke the window. — You ____ play football near the window.
A should B. shouldn’t C. had better D. must
—Must I come at four o’clock?
— Oh, no, you ____.
| A．don’t | B．mustn’t | C．don’t have to | D．can’t |
The students enjoy _________ English songs after class.
| A．practice to sing | B．practicing singing |
| C．to practice singing | D．to practice to sing |
You’d better ____ too much meat. You are much too fat.
| A．not eat | B．eat | C．not to eat | D．don’t eat |
Would you mind _______ the window for me? I feel a little cold.
| A．opening | B．closing | C．to close | D．to open |