题目内容

I earn 10 dollars _________ hour as _________ supermarket cashier on Saturdays．

[　　]

A．a；an

B．the；a

C．an；a

D．an；the

答案：C
解析：

该题考查定冠词和不定冠词的区别和不定冠词在元音前的用法.在表示时间频度的有关短语中，一般用a或an代替every，元音音

素开头的单词前用an.这时a或an表示“每一”，相当于介词per的含义.例如：We have three meals a day．

They have five English classes a week．

cashier意为“出纳员”是可数名词，泛指一个人的身份，且该词是以辅音音素开头的单词，其前应加不定冠词a，答案为C.

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