Question

My school isn't far from here. It's only ________ walk.

A. fifteen minutes
B. fifteen minutes'
C. fifteen minute's
D. fifteen minute

Answer 1

答案B
一些表示时间、距离等的名词后面可加“-'s”来表示所有格，以-s结尾的复数名词，其所有格只加“-'”构成。