--- Are you happy with your grades in the math exam?---Not at all. I can’t have ________________.
Would you please tell me _______ next, Mr Zhang?
---What a nice MP3! How long ______ you ______ it? ---Only two days.
Chinese _______ by more and more people in the world now.
If he ______ harder, he will catch up with us soon.
---May I smoke here? ---No, you ______. Look at the sign, it says, “No smoking!”