3.How would you like to pay for this today?

　　請問(wèn)你今天要怎么付款？

　　4.Must I pay for the hotel with my credit card?

　　我必須用信用卡付款嗎?

　　5.You must pay for this book.

　　你必須要付這本書(shū)的錢(qián)。