Get only whose rows that contains max Date

Hi All,

I have query that looks something like this :

select 1 as Id, '2014-05-25' as ToDate
union
select 1 as Id, '2014-05-26' as ToDate
union
select 2 as Id, '2014-05-25' as ToDate
union
select 2 as Id, '2014-05-27' as ToDate
union
select 3 as Id, '2014-05-20' as ToDate
union
select 3 as Id, '2014-05-19' as ToDate

And i need result looks like this: (get only whose rows that contains max ToDate per Id)
Id |ToDate
------------
1  2014-05-26
2  2014-05-27
3  2014-05-20

Is there a way to do this in the most efficient ?

Regards, Evgeniy.