My grandfather has a large __________ of stamps.

So between 1510 and 1514 Copernicus worked on it, gradually _____ his theory until he felt it was complete. [ ]

MrLi, leader of the team, always think of _______ he can do more for his teammates

But for your support then, I don’t think we _____ the task.

I did in the English test than last time.— So did I. I did in our class.