（ ）1.______boy from America is ______ friend .
A. A, my B. The, my C. The, mine D. A, mine
（ ）2.Grandpa is sleeping . He’s so tired . Would you mind ______ the TV ?
A. turn down B. to turn down C. turning down D. turning on
（ ）3.Richard is one of the ______ in his company .
A. tallest men B. tallest man C. taller man D. the tallest man
（ ）4.---Look ! Susan is reading a book under the tree .
---No ,it ______ be her . She’ s ill in hospital .
A. may not B. can’t C. mustn’t D. may
