This painting is believed _ painted by leonardo da vinci a) that it is b) to be c) being d) to have been.

This painting is believed _ painted by Leonardo Da Vinci 
d) to have been.

Предложение:
This painting is believed to have been painted by Leonardo Da Vinci.

Перевод:
Предполагается, что эта картина была написана Леонардо да Винчи.

ответ:
d) to have been

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