—The government should think about the medical reform again and make sure of medical care，in my opinion.—________.The medical services and efficiency are not good at the moment.

—I think we should give a hand to the elderly when they fall onto the ground.— ___________. Everyone needs help when they are in trouble.

—Do you know Anna's telephone number?—________.As a matter of fact，I don't know any about Anna，either.

Look at the national flags below. Which represents China?

— Would you mind ____ the window? It's hot here!  — ____.