He surprised his teachers with his memory. ? by is also OK?
You cannot interchange "by" and "with" in these two versions. He surprised his teachers with his ability to remember everything they taught him. His teachers were surprised by his ability to remember everything they taught him.
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You cannot interchange "by" and "with" in these two versions.
He surprised his teachers with his ability to remember everything they taught him.
His teachers were surprised by his ability to remember everything they taught him.