一．单项选择： （1*15分）
( ) 1. Eating ________ apple ________ day keeps the doctor away.
A. an; a B. a; an C. a; a D. an; an
( ) 2. I often eat vegetables ________ dinner.
A. at B. for C. on D. in
( ) 3. I go to school _________ Monday morning.
A. at B. in C. on D. of
( ) 4. —_________ are you talking to?
－I’m talking to Li Lei.
A. When B. Who C. What D. Where
( ) 5. There are three ________ on the table.
A. bottle of orange juice B. bottles of orange juice
C. bottles of orange juices D. bottle of orange juices
