Their opinions are roughly the same.

He did not paint his own pictures, but had them done by others.

He wrote an essay for me.

He spoke for me.

His novel was actually the work of a ghostwriter.

He is using honey as a substitute for sugar.

This microscope has excellent magnification capabilities.

There is a big meeting at school tomorrow.

Daijiro is my best friend.

Daiyu is my best friend.