"Is it" at the start of those sentences doesn't make sense. If you delete "Is it" then they are possible, though "came/come to " seems more likely.
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Mercy JhansiSo,'You came for all the classes?''You are coming for tomorrow's class?''You have done the home work?'Are all these correct?Yes, other than the small point that "homework" is one word. Of course, the usual question forms would be "Did you come ...?", "Are you coming ...?" and "Have you done ... ?". Here you are turning a normally declarative sente