Students are required to write ________ article in every English test．

Students are required to write ________ article in every English test．

A.a 80-word

B.an 80-word

C.an 80-words

D.a 80-words

答案及解析： B

解析：

复合形容词中名词只能用单数形式，因eighty开头是元音，故不定冠词用an。