Берг еще что-то говорил, но Ростов,

Берг еще что-то говорил, но Ростов, не дослушав его (to hear somebody to the end), уже поехал дальше.

Results (English) 1:

Berg has something to say, but not waiting for the Rostov (to hear somebody to the end), already drove on.

Results (English) 2:

Berg has said something, but Rostov, without hearing it (to hear somebody to the end), has gone further.

Results (English) 3:

Berg is the spoken, but Rostov, without listening it (to hear Ternheim to the end), is already drove on.