The park is far from here. It’s about .A. thirty minutes’ walkB. thirty minute’s walkC. th

问题补充：

The park is far from here. It’s about .

A. thirty minutes’ walk

B. thirty minute’s walk

C. thirty-minute’s walk

D. thirty-minutes’ walk

答案：

(答案→)A. thirty minutes’ walk

B. thirty minute’s walk

C. thirty-minute’s walk

D. thirty-minutes’ walk

解析：考查数词的用法。句意“公园离这里很远。步行大约30分钟。”数词+名词所有格可以作定语；复数名词要先加s再加“’”。例如，have an hour’s ride“骑车半个小时”。故选A。