SQL Server: Select only one row of rows that has the same ID on some coulmn

SQL Server: Select only one row of rows that has the same ID on some coulmn

I have a table that has 3 columns: - ID - FROM - TO And i have data like that
-----------------------
ID | FROM | TO
1 | 2 | 1
2 | 5 | 1
3 | 7 | 1
4 | 2 | 1
5 | 2 | 1
6 | 9 | 1
7 | 3 | 1
8 | 4 | 1
9 | 5 | 1
I would like to create a query that selects all rows where TO = 1 and i
don't want to display rows that was previously retrieved, for example i
have multiple rows where FROM = 2 and TO = 1, i just need to retrieve that
row only once.
My table doesn't really look like this but i am giving a small example
because my aim is to collect all FROM numbers but without any redundancy.