问题
选择题
This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense.
A．would
B．should
C．could
D．might
答案
答案：B
考查虚拟语气用法。前句表示打印机质量好，按道理起初的一年内不可能毁坏，所以下句提出了一种将来的可能性不大的假设，由此判断为与将来事实相反的假设，用虚拟，从句形式Be to do, 动词过去时；should 动词原形。故选B.