彼は何と

How … he is!, What does he say?

→ 彼
phrase Uncommon #17,968
How … he is! An exclamatory pattern: 何と is followed by a description of him, often ending in なんだろう or のだろう.
JA: 彼は何と勇敢なんだろう。
EN: How brave he is!
phrase Rare #32,349
What does he say? 何と asks what someone says or answers; 言う or 答える may follow or be understood from context.
JA: 彼は何と言うかしら。
EN: I wonder what he’ll say.

彼は何と言うかしら。

I wonder what he'll say.

彼は何と?

What did he say?

— Article 15 (2019)

彼は何と?

What did he say?

— コーラス (2004)

彼は何と言ってよいか途方に暮れた。

He was at a loss for words.

彼は何と答えてよいかよく考えた。

He thought carefully about how he should answer.