Sometimes I act as a listening ear for fellow students _______ what is bothering them

I can’t find Mr Smith Where did you last see him this morning?—It was in the hotel _______ he stayed

leave right away,____ we’ll arrive on time

Are you two old acquaintances —Yes, we _____ in the same neighborhood for quite along time, though he went abroad with his family at 14.

____ to visit you later that day, but I had tophone and cancel.