It was on the farm [ ] he spent his childhood [] he learned how to grow vegetables.
A where that
B which when
C that that
D which which
请问为什么选A，以及为什么？并解释其他不选的选项，谢谢了。
谢谢谢谢谢谢谢谢谢谢谢谢谢谢大家
选A第一个空，还原从句：he spent his childhood (on the farm)，where在从句中作状语。其他选项第一空的引导词都是引导定语从句的，而从句中缺少状语，that不能充当从句中状语，单独一个which也不能，除非是on which。第二空，是配合 "It was......that......"（强调句句型）。强调“
强调句型it isthat如果前面一个选that,那么只能选c但是定语从句he learned how to grow vegetables已经完整，不需要关系代词that所以后面用that,强调当中on the farm [where] he spent his childhood定语从句he spent his childhood 缺少状语
