There is “s” and “u” in word “bus”.A. a; an; aB. an; an; aC. an; a; theD. a; a; the

问题补充：

There is “s” and “u” in word “bus”.

A. a; an; a

B. an; an; a

C. an; a; the

D. a; a; the

答案：

A. a; an; a

B. an; an; a

(答案→)C. an; a; the

D. a; a; the

解析：根据s的首个音标为元音音标，故用an，而u的首个音标为辅音音标，故用a，而最后一空是特指，故选C