问题补充：
I’ve included some photos in my letterwill help you picture the places I
worked as a volunteer teacher.
A. that, which
B. which, where
C. which, that
D. \, in which
答案：
A. that, which
(答案→)B. which, where
C. which, that
D. \, in which
解析：考察定语从句。本题第一空定语从句的先行词是some potos，后面的定语从句中缺少主语，故使用that/which指代先行词在句中作主语。第一空定语从句的先行词是the place还没定额定语从句句中很完整，故使用关系副词where在句中作状语。句意：在我的信里我会加上一些照片，这些照片帮助你描述那些地方，在那里我做一个志愿者教师。故B正确。
