—What did the teacher say just now?---Sorry. I didn’t catch it. I        about something else.

---How dangerous! --- Yes. I think the policeman should stop the children      soccer in the street.

he girl sitting next to me on the plane was very nervous, for she            before.

---I hear Sam has gone to Qingdao for a holiday.---Oh, how nice! Do you know when he________?

He ________this new computer since last week. It is birthday present.