单选题
The manager wondered why ________.
A、
the workman sent a bill to the company
B、
the mice bought for the job were a male and a female
C、
the workman had paid for the mice
D、
mice were needed in repairing a house
【正确答案】
D
【答案解析】
[解析] 根据第一段可知：一个小建筑公司的经理收到了一张购买两只白鼠的账单，感到非常惊奇，就把买老鼠的员工找来问个究竟。由此可以推断出答案D是正确的。
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