Although he has bee wealthy, Mr. Wood remains he used to be, modest and friendly.
A. which
B. where
C. what
D. that
网友回答
A. which
B. where
(答案→)C. what
D. that
解析：常考表语从句。本题的what引导的是表语从句，what在句中做be后面的表语。因为表语从句中的be动词后面缺表语，排除BD项，which是指特定范围之内的某一个，本题又那样范围的限制。故C正确。