Some birds live in cool places in spring start flying to warm places in autumn.who where which wha
问题描述：
Some birds live in cool places in spring start flying to warm places in autumn.who where which wha
应该选哪个?带上理由
Some birds（） live in cool places in spring start flying to warm places in autumn.
A.who B.where C.which D.what
答
恩 这个选c 定语从句 从句live in cool places in spring缺主语 用which或who 但who一般指人
所以用which