The old man can't hear anything.(改为同义句）

The old man can't hear anything.(改为同义句）
The old man can't hear anything.(改为同义句）

The old man can't hear anything.(改为同义句）
The old man can hear nothing.

The old man can hear nothing

The old man can't hear anything=The old man can hear nothing.
nothing=not anything

the old man is deaf.

the old man is deaf
the old man lost his hearing

除了同上，还有‘Noting can be heard by the old man.'

主要是转换can't和anything，我没记错的话，这是初一的：
The old man can hear nothing
若是单数，则把no转换为a
~~~~复~~，~~~~anything~~~~nothing

The old man can hear nothing.
The old man has lost his hearing.
Nothing can be heard by the old man.

The old man can't hear anything= The old man can hear nothing.
nothing=not anything