Do You enjoy traveling by air ——No，it’s ________ expensive.

Whoever leaves the lab last, _____ all the lights are turned off.

The little girl _____ on the sofa _____ to me that she had ______ the purse on the table.

n chang your job, you can move house ,butfriendship is meant to belife

e me, Sir, but could you tell me how to go tothe railway station―Sorry. You’d better ask, I’m afraid, ______ is anative.