ThisiPhoneisofgoodquality．Ifit     breakdownwithinthef...

问题详情：

 This iPhone is of good quality．If it      break down within the first year, we would repair it at our expense．

       A. should                   B. would                   C. could                    D. might

【回答】

A

知识点：虚拟语气与情态动词

题型：选择题