How do the shops make money if they sell at such low prices? —Manufacturers, it seems, are willing to bring down prices _______ big volume purchases

_______ that Tom got inside the room to see what was going on

________ to overcome the difficulty，he works day and night．

Linda, _______ you good at geography–Yes. Geography is my favorite subject.

Do you need any help, Lucy——-Yes. The job is _________ I could do myself.