You look upset. What’s the matter — I had my proposal ______ again.

Every morning, students in our school about half an hour on “Sunshine for All —The Plan for Sports(阳光体育计划)”. They feel energetic after that.

you mean that we have lost our way—_____, my dear. We’d better ask someone for help.

I don’t think it is good for animals to stay at zoos, ___________? —- I agree with you.

Sorry, I have to ______ now. It’s time for class.—- OK, I’ll call back later.