Justin Bieber is Canadian singer and he has lots of fans.A. aB. anC. theD. 不填

问题补充：

Justin Bieber is Canadian singer and he has lots of fans.

A. a

B. an

C. the

D. 不填

答案：

(答案→)A. a

B. an

C. the

D. 不填

解析：本题介绍的是事物的类别在可数名词前应用不定冠词a或an，辅音音素前用a，元音音素前用an，本题中的Canadian第一个音是辅音，故用a，故本题选A。