-----Have you finished your composition already, Jack? ----Yes, I _____ it within half an hour.
People nowadays spendthey used to buy less food, especially meat.
With the quality-oriented education being carried out, teachers won’ttoo much importance to students’ grades.
Don’t call me at 9:00 o’clock tomorrow morning ,when I a lecture at Harvard.
Simply ring me up, I’ll come to your help as soon as possible.
Environment-friendly Olympics requires Beijing to improve its environment, turning it into an ecology-friendly city.