Please keep quiet, everybody! I have       important to tell you.

      A. nothing                  B. something                C. everything

Please keep quiet. If you make a lot of ________, you may disturb others.

1. A.
   voice
2. B.
   noise
3. C.
   sound
4. D.
   singing

Please keep quiet．If you make so much ________ you may disturb others．

1. A.
   voice
2. B.
   noise
3. C.
   sound
4. D.
   singing