为什么an hour中an后可加h这个辅音

为什么an hour中an后可加h这个辅音 英语中hour前为什么用an an hour`s drive中hour后为什么用`s, 为什么half an hour later 中an不变成a 为什么hour前面用an 为什么不是There is a (h) and an (u) in the word (hour).而是There's an (h) and a (u) in the word (hour).Thank you~ an houe ago中HOUR不是元音字母开头 为什么用AN? There are 60 minutes in an (hour)为什么an 后面填 hourhour的H不是元音字母 there are an h and a u in the word hour为什么用are? sixty minutes make an hour为什么要用an in an hour /within an hour用什么时态in an hour /within an hour在句子中,句子分别用什么时态? There is ___ h,____ O,_____ u_____ and_____ r in ____ word hour.A.a an a an the B.an an an an a C.an an a an the D.a an an an a half an hour later she woke up.还有这half an hour为什么等于thirty minutes. 为什么不能说he will leave after an hour?要用in an hour? 哪个对,为什么?stay the park for an hour还是stay for the park an hour an hour-long half an hour later half an hour造句