问题
选择题
My grandparents like to live in a house _______ is not very big but bright and comfortable.
A．that
B．who
C．what
D．whose
答案
答案：A
连词的用法。定语从句的连接词根据先行词来判断，先行词为人时用who或that，先行词为物时用which或that.此题中先行词house为物因此用that，故选A。