Question

Here is a survey about hopes and dreams ______ thousands of students took part.

A．at which

B．in which

C．with which

D．about which

Answer 1

B

解析试题分析：句意：这是一个有关希望和梦想的调查表，几千学生参加了这个调查。此处短语take part in意为：参加。这里in被前置。所以选B。
考点：考查定语从句的关系词。