A
Anonymous
Guest
Dear Sirs,
which is correct of the following:
Only personnel trained according to user levels 1 or 2 is allowed to perform service on ...
or
Only personnel trained according to user levels 1 or 2 are allowed to perform service on ...
Thanks!
/Katherine
which is correct of the following:
Only personnel trained according to user levels 1 or 2 is allowed to perform service on ...
or
Only personnel trained according to user levels 1 or 2 are allowed to perform service on ...
Thanks!
/Katherine