He kept looking at her, wondering whether he her somewhere.
A. saw
B. has seen
C. sees
D. had seen
网友回答
A. saw
B. has seen
C. sees
(答案→)D. had seen
解析：原句意思是，他一直在看着她，考虑以前是否在什么地方见过她。kept用的是一般过去式。这里说“考虑以前是否在哪个地方见过她”显然指的是发生在“kept”之前，即过去的过去，所以应该用过去完成时态，所以选D.。