1. —You look very tired this morning. What did you do yesterday afternoon?
—I did Christmas shopping.
A. a lot of B. a few of C. a number of D. a piece of
2. If the question ______ incorrectly, _______ question will be given to you
A. is answered, other B. answers, other
C. is answered, another D. answers, another
3. Now the air in our city is _______ than it used to be. Something must be done to stop it.
A. very good B. much better C. rather bad D. even worse