I looked at the young man, wondering ________ .A.when had I seen him beforeB.that where I had seen him beforeC.if I saw him beforeD.whether I had seen him before
网友回答
D解析注意这里的see应用过去完成时，wondering所带的现在分词短语作伴随状语，表示与谓语动词looked同时发生的动作，因此wondering后带的whether引导的宾语从句中see的动作应该在“过去的过去”，同时，从句应使用陈述语序。