Question

【题目】Everyone was surprised at the photos ______ were taken by Mr. Thomas in the deep sea.
A.who
B./
C.what
D.which

Answer 1

【答案】D
【解析】句意：大家都对托马斯在深海里拍的那些相片感到惊奇。Photos是先行词，后面是跟的它的定语从句。Photos指事物，关系词用that, which；关系词在定语从句里作主语，不能省略，故选D。