.why,请详细的回答和解疑.Jimmy is ___one-year-old boy and he has _

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.why,请详细的回答和解疑.Jimmy is _____one-year-old boy and he has _____8-year-old sister 答案是（a,an）,但我认为是an,an啊,

不定冠词有an 和a,在元音前面用an,这里的元音并不是构成单词的字母元音,而是发音的第一音为元音.
这里的one-year-old boy中的,one 的音标是[wʌn],很明显不是是不是元音开头,故第一个空填写 a. 而第二个eight的音标是[eɪt],很明显是元音e开头的,因此第二空填写 an.

我这么说,你明白没有.希望对你有所启示.
GOOOOOOOOOOOOOOOOOOOOOD LUCK

.why,请详细的回答和解疑.Jimmy is _____one-year-old boy and he has ___ He is ________ 8-year-old boy. he is a 13-year-old boy John is twenty year old,but he has only five birthdays.why?b John is twenty year old ,but he has only five birthdays.Why? The one-year-old boy is smart and he is able to count up to 小题1:Tom is a 12-year-old boy. If he has a headache, he shoul he is a 6-year-old boy.可以说he is a 6 years old boy吗 He is a sixteen-year-old boy.同义句, 10.Mr.Black has a ___.A.ten year old boy B.ten -years old bo Tim is ___ boy.He can say a few words.A.an one-year-old B.a 英语短文求大神（D）Wang Fei is a twelve-year-old boy.He is lovely and