问题
选择题
He kept looking at her, wondering whether he ________ her somewhere.
A．saw
B．has seen
C．sees
D．had seen
答案
答案：D
因为由语境可知，see应当发生在kept looking之前，即过去的过去，所以用过去完成时，只有D正确。
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He kept looking at her, wondering whether he ________ her somewhere.
A．saw
B．has seen
C．sees
D．had seen
答案：D
因为由语境可知，see应当发生在kept looking之前，即过去的过去，所以用过去完成时，只有D正确。