He is always the last one__________ out of the classroom when the bell rang.
—Shall we go on visit to Shanghai after the exam?—No. I have to practice playing piano.
Please check your paper to_____ there are no mistakes.think of B. try out C. find out D. make sure
— Jack, would you mind if I use your ipad?
I don’t like _____of the sweaters. Please show me a third one.
— It’s already Monday. Sam lost his MP4 last Wednesday and he hasn’t found it.— Really? Do you mean_?