Gofynnir i fyfyrwyr gael prawf wrth ddychwelyd, cadw ar wahân yn eu cyfeiriad yn ystod y tymor am gyfnod byr o dridiau a chael ail brawf ar ôl hynny.
Students will be asked to take a test on return, lay low at their term time address for a short period of three days and access a second test.