Now that you like the computer so much, why not buy one?— Well, I can’t afford _____ computer at present. [ ]

Must I return the book this week– No， you_______. You can_______ it for 20 days.

It’s difficult to ___ these old books for some of them ______ none of the classification.

Make yourself at home, Lucy. You can take _______ book you would like to read.

Are you good at history， Rose—_______. But I will try to study it well this term.