问题补充：
Our refrigerator is again.Wed better buy a new one instead of repairing it.
A. in order
B. by order
C. under order
D. out of order
答案：
A. in order
B. by order
C. under order
(答案→)D. out of order
解析：D考查介词短语。句意：咱们的冰箱又坏了。我们别修了，买台新的吧。out of order“坏了；秩序乱了；发生故障”。
