Question

Americans _________sent a message to the world________ we have never been a collection of Red States and Blue States: we are, and always will be, the United States of America.               

A．that, \

B．who, that

C．who, when

D．that, what

Answer 1

B

本題考查定語從句及名詞性從句。第一空先行詞Americans，在定語從句中作主語，故用關系詞who，第二空that引導同位語從句，解釋說明名詞message，故選B。