English is _______ useful language and it’s also_______ important subject.

We have enough time to go to the airport. You _______ be in such a hurry now.

Hi, David. Is that your schoolbag- No, it is Mike’s. And the sweater near the bag is .

Try to ______ the children down. They’retoo excited.

___weather it is, we shall set out at 8o’clock．