IjoinedthevolunteerorganizationRootsandShoots,

问题详情：

 I joined the volunteer organization Roots and Shoots, _______ aim is to help young people take part in the protection of the environment and animals.

   A. whose                B. which                      C. what         D. where

【回答】

A

知识点：定语从句

题型：选择题