Present Perfect: Has Mark phoned x Did Mark phoned

Aí vai meu ponto de vista:

We have heard that you have rooms to let.( Present Perfect)
We heard that you have rooms to let. (Simple Past )

Ambas possíveis e corretas.

Has Mark phoned?
Did Mark phoned?

O correto é Did Mark phone? (Did -> verbo no infinitivo)
Tirando o "d", ambas possíveis e corretas.

I've given your old radio to Philip.
I gave your old radio to Philip.

A segunda me parece melhor, uma vez que o rádio foi dado, e ponto final (a ação não sugere continuidade). Mas existe a possibilidade de ter acabado de acontecer, então: "I've (just) given your old radio to Philip". --> ou seja, tb correta.

Thanks for your answering. I get it.

Everaldo

None of those sentences are wrong.

An American is more likely to ask "Did Mark phone?", whereas an English is more likely to say "Has Mark phoned?".