Question

 _______of the truth of the report, he told his colleagues about it.

A. Convinced                                            B. Convincing

C. To convince                                         D. Having convinced

Answer 1

解析：选A。考查动词convince的用法。句意为：他确信了报告的真实性后，把它告诉了同事们。convince表示“使……信服；确信”应用convince sb. of sth. ，即sb. be convinced of，而选项D应改为Having been convinced。故选A。