.--- I will attend your lecture at 10:00 tomorrow. --- I am sorry, by then my lecture will have ended and I ______ my guests in my office.
I _____ the boy to save money for the future, but he wouldn’t listen.
In modern civilization, mankind is destroying the planet, all __________ progress.
With the project of animal protection, foxes are becoming more ________ in urban areas.
Food safety is ________ important, so the government spares no efforts to prevent food pollution.
Don’t be so discouraged. If you ________ such feelings, you will do better next time.