---______ is it from your home to the radio station?---About three kilometers.

 —Oh, there’s someone knocking at the door. —_______ must be that naughty boy.

Everyone says that he is difficult to _______，but I don't think so.

--what is Mum cooking in the kitchen? "                                      --Fish, I guess. How nice it     !

— Why don’t you watch some English movies? — Oh, it’s too ______ because the people speak too quickly. I can’t catch them at all.