语音知识：(共5小题；每小题1分，满分5分)
blood    A  football    B bookmark    C stood       D. flood
southern      

A．bathroom

B．cloth

C．health

D．farther

theatre    

A．appear

B．especially

C．learner

D．society

pleasure      

A．usually

B．sure

C．pleasant

D．citizen

surprise     

A．forgive

B．police

C．impolite

D．bridge