Tom is not he was in the situation he was pessimistic.
A. where; when
B. what; where
C. that; in which
D. what; that
网友回答
A. where; when
(答案→)B. what; where
C. that; in which
D. what; that
解析：本题考查名词性从句及定语从句。what引导表语从句，在从句中作he was的表语；先行词the situation在从句中作地点状语，选B。