---I don’t want to go to school on foot. What should I do?-You try asking your father f

问题补充：

---I don’t want to go to school on foot. What should I do?

---You try asking your father for a bike, or you can go by bus.

A. have to

B. must

C. might

D. can’t

答案：

A. have to

B. must

(答案→)C. might

D. can’t

解析：have to必须，不得不；must必须，一定；might可以，或许； can’t不能，可能不。句意：我不想步行去学校。我改怎么办？——你可以试着向你的父亲要一辆自行车，或者你可以乘公交。结合语境可知选C。