I hate ________ when people speak with their mouths full．

I hate ________ when people speak with their mouths full．

A.that

B.it

C.不填

D.this

答案及解析： B

解析：

本题考查hate一词的用法以及形式宾语知识。从题意“我讨厌人们说话时嘴里含食物”得知when从句应是hate的宾语。由于hate不能接宾语从句，故应用it作形式宾语。