Question

Have you sent thank-you notes to the relatives from _    _ you received gifts?

A．which

B．them

C．that

D．whom

Answer 1

D

试题分析：本题考查定语从句，首先从前后两个句子的谓语判断该空为关系代词，所以排除B，前面有介词from，排除C，又根据receive sth. from sb.，看出后面从句成分不完整，所以该句为定语从句，介词后面用whom指人，而which 指物，所以答案为D。
点评：定语从句要先看先行词，在定语从句的成分，定语从句的动词是关键，学生可能因为没有分析清楚receive 的用法认为后面的句子完整而选择了C。