1． There are usually 28 in a person’s mouth, so we should listen to the doctor’s ______ to protect（保护）them.

possible that one day wewill disability, so we shouldn’t look down upon the disabled

How long do you think it will beChina becomes a rich and harmonious country?

re very impolite to him, for ______you should make an apology to him, I think,

Some of us suggested that we ____ a rest, yet the others insisted that they ____ not tired at all. [ ]