Everton defeated Fulham and Leicester before the global break to kick-start a campaign that was initially blighted by injuries to a number of key personnel.
Assessing their availability for the visit of Palace, Silva said: "It's possible".
The Eagles are not a bogey team for Everton, but they have collected at least a point from the Toffees in seven of their last 10 meetings.
"He is working hard to achieve a good physical condition". It will be a tough game.
"They did well but it's better if (I decide) whether to play Mina or Jagielka or Mason or I keep with the other two".
"What we have to do is play at our best level and respect our opponent".
Everton have improved over the last few weeks, with Michael Keane and Kurt Zouma impressing in the centre of defence, and when asked about the pair's good form, Silva said: "Yes, I agree with you".
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Critics of the incident and how it was handled said the man should have been removed - rather than the woman herself moving seats. Other passengers can be heard gasping and the man from the row behind leans forward to put his arms between the man and woman.
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"I think everybody is happy with this situation".
"Everything looks different now, we hope we continue in this way because they're getting fit, the competition is getting harder for them and it's important for us".
"But I don't want to focus just on these four. We have to find solutions to score and win the match".
McCarthy has been out for nearly 12 months after suffering an horrific leg break against West Brom and Silva is looking forward to having him available again.
Idrissa Gueye is a doubt after suffering an ankle issue while on Senegal duty during the global break.
Marco Silva has said he is pleased with the progress being made by his Everton side and the output of his current front four. "We know before the situation could happen".
