– Do you know yesterday? – It was at 8 o’clock in the morning.A. when did she comeB. when

问题补充：

– Do you know yesterday?

– It was at 8 o’clock in the morning.

A. when did she come

B. when was it that she came

C. when she came

D. when it was that she came

答案：

A. when did she come

B. when was it that she came

C. when she came

(答案→)D. when it was that she came

解析：考察强调句型的特殊疑问句。强调句型的基本结构it is/was…that/who…是可以省略的。且这是一个宾语从句，应该使用陈述语序。故D正确。