The TV set he _________ works well now

下列各句中加点词语不属于名词作状语的一项是

The final exam is coming. I don’t think I can pass it though I work hard. — Be confident! Even students with ___intelligence can be successful, let alone clever students like you![ ]

______ is a fact that English is being accepted as an international language.

The window is dirty——— I knowIt __________ for weeks