Question

The man was seen         the park. But now we couldn't find him there.

A. enter          B. to enter      C. going         D. went into

Answer

B

【解析】

试题分析：句意：这个人看见在公园里，但是现在我们找不到他。See sb. do sth.看见某人做某事，后接动词原形做宾补；但是在被动句中，要用不定式to do作宾补；即 be seen to do sth; 故选B。

考点：考查非谓语动词。