Can I pay the bill by check?—Sorry, sir. But it is the management rules of hotel that payment _____ be made in cash.

We should help our parents do some housework.The main structure of the sentence is _______.

Do you know _____________ —–In two days.

There is going to ________ a sports meeting next week. If it ________, we’ll have to cancel(取消）

In my point of view, the question is not _____ the world is going to have a new economic crisis, but when.