一、选择填空：
( )1. --- What’s on the table? --- __________ some bread on it
A. There is B. There are C. They are
( )2. There _______ some old people talking a walk in the park.
A. is B. are C. have
( )3. There ________ a ruler and some pens in my pencil—box.
A. are B. is C. am
