单选题 Last month Jack ______ his left leg.
A) fell and broke C) fallen and broken
B) feel and broken D) has fallen and broken

【正确答案】 A
【答案解析】句子意为：上星期Jack摔了一跤，摔断了左腿。本题测试动词时态。从时间状语 last month可知，应该用一般过去时态。fall的过去式为fell；break的过去式为broke。