这位医生因两项伪造罪被定罪。

The doctor was convicted on two charges of ___forgery.

弗兰克想起了他黑暗的过去，那时他犯了伪造罪。

Frank remembered his dark past, when he committed ___forgery.

调查揭露了一起复杂的官方文件伪造案。

The investigation revealed a sophisticated ___forgery of official documents.