Must I return the book this week I borrowed it 10 days ago.—No， you _________ . You can _______ it for another 10 days.

He asked me_____ for the new skirt. [ ]

Sarah looked at _________ finished painting with __________satisfaction.

a very hard-working student．—________．As far as I know, he often burns the midnight oil．

They ______ going to school on foot before they went to high school.