— Excuse me, Is this the right way to the Summer Palace ?— Sorry, I am not sure, but it _______ be.
According to some students, ______ listening practice is still ______ must in Senior 3, because it helps promote the sense of language.
It is important to know about the cultural differences that cause problems.
If we earlier, we couldn’t be waiting here in a queue.
Our country should set up more national parks animals can live freely.
— Can the project be finished as planned?— Sure. it completed in time, we’ll work two more hours a day.