The students_____ until the heavy rain stopped.

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

_____ Longyan you see today is quite _____different city from what it was twenty years ago.

—Why are the Woods selling their belongings?—They _____ to another city. [ ]

thewarbrokeout,manypeople________insafeplacespossessionstheycouldnottakewiththem