彼は驚くほど何も知らないの英語

It is surprising that he should not know this.

He thinks he knows all the answers.

He seems not to have known it.

It is surprising that he should not know this.

He does not know where to stop.

He doesn't know that at all.

He doesn't know the shocking facts yet.

There is no way that he didn't know anything.

He pretended to be ignorant.

The fact is that he knows nothing about it.

He is completely unaware of the fact.

He only knows that much.

It seemed as if he knew nothing about that.

He must know the real circumstances

He doesn't know beans about opera.

He is lost to reason.

He doesn't have that level of knowledge.

He seems to know nothing about the matter.

He disguised himself in such a way that no one could recognize him.

he doesn't know A from izzard

It is certain that he didn't know that.

He hasn't the foggiest idea [notion] (of) what he's doing.

He is not so foolish but he can tell that.

He never overlooks anything

I don't know anything about him at all.

He is not such a fool that he doesn't know it.

As a matter of fact, he knows nothing about it.

Curiously (enough), he already knew.

His memory is quite blank on the matter.

He says something or other―makes difficulties―and will not consent.