下列选项能体现中华民族传统美德的有( ) ①苟利国家,不求富贵 ②自胜者强 ③前事不忘,后事之师 ④先天下之忧而忧,后天下之乐而乐
—I'm sorry I stepped outside for a smoke. I was very tired. —There is no________for this while you are on duty.
—Would you like to go to the dinner party on Saturday? —Thank you. I'd love to,________I'll be out of town at the weekend.
—Haven't you realized the use________the used paper? —Yes, already.
Being determined is a kind of quality and that's________it takes to do anything properly.
—What do you expect Mr. Zhang to succeed in? —________.