When it comes to mathematics, he is second to none in his class.
come When will the world come to an end?
come When did the world come into being?
come Please come to my house by all means.
come Do come to the party.
come With restrictions removed, thousands of new enterprises have come into being.
come When it comes to politics, I know nothing.
come When it comes to politics, he is as eloquent as anyone.
come I'll come at noon to pick you up.
come When it comes to raw fish, I feel disgusted.