Father, you promised!—Well,____．But it was you who didn’t keep your word first．

Look out! The ceiling _____ falldown

The commercial city, Loulan, used to be a stopping point on the silk road between the West and the East, ______ by sandstorms from AD200 to AD 400.

The snowstorm ________ our difficulties

Bob took a photo of his girlfriend while she _________ at the party.