David often forgets _____ his English book.
| A．to bring | B．bring |
| C．brought | D．brings |
【2013山东菏泽】—Can we run across the road now?
—No, we . We have to wait until the light turns green.
| A．needn't | B．mustn't |
| C．couldn't | D．shouldn't |
【2013福建福州】—Is that girl Susan?
— It _________ be her. She left forBeijingyesterday.
A.needn'tB. can'tC. mustn't
【2013四川内江】—_____Ifinishmy homework now?
—No, you_____. Your work is over today.
| A．Can't; must | B．Must; don't have to |
| C．May; couldn't | D．Couldn't; could |
【2013广东】—Someone is knocking at the door. Is it Ann?
—It ______be her. She is giving a performance at the theater now.
| A．may | B．must |
| C．can’t | D．mustn’t |
【2013甘肃兰州】— Look at the boy playing basketball on the ground. Is it George?
— It ______ behim. He told me he would play basketball after class, but he’s notsure.
| A．mustn’t | B．must | C．can’t | D．may |