Interlocking works like this:Students start class early in the morning up until noon.Then other students start class in the afternoon.Interlocking schedules in PR are used when other schools are being remodeled or under construction.
the correct answer should be unos libros
hope I helped !
Answer:
i think it would be cuando which is B.
Explanation:
if you use cuando it would be "cuando es tu cumpleanos.
