_______of the money_______been spent recycling the rubbish.
| A．three fourths; has | B．three fourths; have |
| C．three fourth; has | D．three fourth; have |
—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 |
—Must we clean the room at once?
—No，you ________.You can do it after school.
| A．mustn't | B．needn't | C．can't | D．may not |
—May I play computer games now，Mom?
—No，you ________ finish your homework first.(2013，临沂)
| A．must | B．can | C．could | D．may |
Mum，what are you cooking？It __ __ so sweet.
| A．tastes | B．feels | C．sounds | D．smells |
—Are you in a hurry?
—No，I've got plenty of time. I ________ wait.教育名师原创作品
| A．can | B．can't | C．must | D．mustn't |