Many experts agree that once thesetreasures are _______ to the air, great harm will be done to them. So theythink it better not to unearth the treasures.

If you are able to talk to a friend over the telephone, you feel that you are close __________ the actual distance is not shortened.

Who broke the door Let’s__________.

Unluckily, my classmates and I went to the nearby library to read books last Sunday, only to be told that it ________ .

I used to ____ in the countryside. But now I have got used to _____ in the city.[ ]