EXPLANATION
Let's call F to Friday, M to Monday, S to Saturday and Su to Sunday, we can apply the following reasoning:
The common days of the week sequence is:
Sundy, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Su M T W Th F S
But in this case, we have the following sequence:
F M S Su
As we can see, the days are in alphabetical order, so the next two terms are:
Thursday, Tuesday