“Why do you have to be there at six?”—“The teacher demands that everyone _____in his seat at six.”

_______ it is to help the old men clean the houses!

John looks very ________, do you think so —Yes. He needs to eat more food.

I called you yesterday evening, butthere was no answer. —– Oh, I’m sorry. I _____ dinner at a restaurant at that time.

You don’t look very _____. Are you ill? — No, I’m just a bit tired. [ ]