To their surprise, they found the lecture given by the famous professor easy ______.

A. to be understood B. to understand

C. understanding D. understood

B

【解析】

試題分析：考查find的用法。find句型的構(gòu)成是：find+sb/sth+adj+to do sth。根據(jù)句型構(gòu)成B項(xiàng)符合題意。本題意為：讓他們吃驚的是，他們發(fā)現(xiàn)這個(gè)有名的專家所做的演講很容易懂。故這道題應(yīng)該選B項(xiàng)。

考點(diǎn)：考查find的用法。

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