Question

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

Answer 1

C

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。