This is the first time in their____ to ski on the Apls A.life B.lifes C.lives

题目

This is the first time in their____ to ski on the Apls A.life B.lifes C.lives
解释一下为什么只能选C

答案

原因 他们的生命要用复数
life变复数为lives
还有问题可以问我