Uncle __________ exercises. It’s not good for his health.
| A．sometimes | B．seldom | C．often | D．always |
【2013浙江舟山、嘉兴】Drivers ________ wear seat belts while theircars are running on the road.
| A．need | B．can | C．must | D．may |
【2013江苏徐州】—Can I borrow your ruler，please?
—Yes，you . But you must return it to me before lunchtime.
| A．have | B．can | C．must | D．used to |
【2013福建泉州】— Have you decided where to go for your summer vacation?
—Not yet. We _______go toQingdao. It's a good place for vacation.
A. mayB. needC. must
【2013山东莱芜】Students in our school ________ know shouting is not allowed in the library.
| A．can | B．may | C．must | D．need |
【2013山东威海】—May I go out for a while, Mom?
—No, you . You have tofinishyour homework first.
| A．shouldn't | B．needn't |
| C．mustn't | D．won't |