—Thank you very much. — A. That’s OK. B. Good bye. C. Thanks.
After a short rest, the workers kept on _____ till midnight.
___of giant pandas is getting ___because their living areas are becoming farmland.
My parents told me _____ at the old people, it’s impolite.
You’d better_____ like that, or the teacher will be angry .
He looked ___________,but could see ____________.