Hi
Did u go to driving authority strassenverkehrsamt in zurich city.

Strassenverkehrsamt Kanton Zürich
Zürich-Albisgütli
Uetlibergstrasse 301
Postfach 8479
8036 Zürich

Thy will tell u exactly what u shd do.
If u r citizen of sgp thn mayb thy will ailow u to do it without test
For expats all hv to gv th test

Hope th above answers ur questioN.

Regards
Sonal