1．I can’t find my purse. I ____________(一定是丢了) while shopping.(must)
2．He ____________(可能通过了驾驶考试) but I’m not sure.(pass)
3．I ____________(本可能解决这个问题), but I didn’t.(work)
4．She won the first prize in the national English competition, and ____________(她的努力最后得到回报)．(pay)
5．____________(你要价多少) this coat？(charge)
