There is ____ ''b'',____ ''u'' and ____ ''S'' in the word ''bus'' .

问题描述:

There is ____ ''b'',____ ''u'' and ____ ''S'' in the word ''bus'' .

a , an, a

There is a "b", a "u" and an "s" in the word "bus".

a a an

b /bi
u /ju
s /es

a, a, an

a,a,an
不明白的再问哟,请及时采纳,多谢!

这是考查字母的读音,a, a, an