--- I think we have met the word before.　　　　--- Yes. It is in the reading material we re

问题补充：

--- I think we have met the word before.

--- Yes. It is in the reading material we reading yesterday.

A. that; did

B. that; were

C. when; were

D. when; did

答案：

A. that; did

(答案→)B. that; were

C. when; were

D. when; did

解析：本题是强调句，选B。