Don't read ________ bed．It's bad ________ your eyes．

1. A.
   on; of
2. B.
   on; to
3. C.
   in; for
4. D.
   at; to

Don't read ________,it's bad for your eyes．

1. A.
   in the bed
2. B.
   in bed
3. C.
   on the bed
4. D.
   on bed

Boys and girls, _____in bed. It’s bad for your eyes