---I argued with my best friend yesterday and I don’t know what to do now. ---Maybe you _______ say sorry to her.
—Excuse me, will the plane for Beijing within an hour? —I’m not sure. You can go to the Information Desk for help.
—I’m a little hungry, Mum. —There are some cakes on the plate. You can take _______.
You don’t know ________ I want to see you again. It’s years since I saw you last time.
—Cindy, could you walk a little bit fast? —But how can I? I _________a heavy bag.
—What do you think of __________ idea of taking part in ‘Earth Hour’? —Wonderful! I’ve never heard of __________ one! We can reduce pollution in this way.