— It’s the classroom! So you ______ know eating is not allowed here.— Oh, sorry.

—Is Nick coming by train?—He should, but he ________ not. He likes driving his car.

I will come _____ I don’t change my mind. 

―Must I report the situation of the new company to the manager now? ―No, you         . You are tired and you can do it after you have a good rest.

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