attest|attested|attesting

这些文件证实了他的说法。

These documents ___attest to the truth of his statement.

律师作为见证人签署了这份遗嘱。

The lawyer ___attested the will by signing it as a witness.

这些照片见证了战争带来的破坏。

These photos are ___attesting to the destruction caused by the war.