---What will you do if it _____ rain tomorrow? --- I’m not sure.
【2013四川广安】—____I swim here?—No, you _____. Look at the sign “No swimming”.A. Must:can’tB. Can; don’tC. Can; mustn’t
【2013四川南充】— Excuse me, whose book is this? — It ________ be John’s. It hashisname on it. A. must B. need C. can’t
【2013四川遂宁】―Must I return the book this week? ― No, you . You can it for 20 days. A. mustn’t, keep B. needn’t, borrow C. needn’t, keep
【2013浙江舟山、嘉兴】Drivers ________ wear seat belts while theircars are running on the road.
【2013江苏徐州】—Can I borrow your ruler,please? —Yes,you . But you must return it to me before lunchtime.