---Where is Mr. Wu, do you know?---Well, it’s hard to say. But I saw him ___________ a football game just now.
You mustn’t forget ______ your dictionary when you come here tomorrow.
—Where is Tom? —I heard him ______ with our English teacher when I passed the teacher’s lounge.
I had a bad cold. The doctor asked me ______ in bed for a good rest.
My brother hurt his ______ yesterday. He can’t walk now.
—Go and ask Mr Green for help. —But I don’t know ______.