(   )21.We all think _____ is kind _____ you to give your seat to a young lady with a baby in her arms yesterday. 
A. that, for            B. it, for                C. it, of                 D. that, of
(   )22.Are you reading the newspaper now? What does it __________?
A. say                   B. tell                   C. speak                D. talk
(   )23. As soon as he went to bed, he fell ____________ .
       A. sleeping        B. asleep        C. sleepy         D. sleep