It was seven o;clock in the morning he came back.It was really at seven o’clock he came back from work this morning.
A. that; that
B. when;when
C. when; that
D. that;when
网友回答
A. that; that
B. when;when
(答案→)C. when; that
D. that;when
解析：本句的第一空用where引导时间状语从句子，而第二空用that构成一个强调句型。