This listening material, together with its CD-ROMS,______well.

Some girls like to stay at home on weekends, but _______ like to go shopping.

You’d better take some medicine with you before you leave ______ someone gets sick

If you all the unnecessary information ,we might publish your book. [ ]

es, worrying is a normal________ to a difficult event or situation—a loved one being_______ in an accident, for example.