How many minutes in an hours 为什么用an而不用a呢

how many minutes in 2 hours how many minutes do How many minutes are there in an hour?（回答） are,minutes,how many,there,in,hour,an连成句子 in how many minutes how many minutes 再加个in 各用在什么情况下?两者区别是什么? How many minutes?的意思 A candle burns out in sixty minutes.How many minutes will it take five candles burning together? How many minutes are there in a hour?这句话哪里错了 In how many minutes would the Town Hall clock strike twelve A car trvels 28 miles in 30 minutes.How many miles per hour does it trawel? How many minutes in an hours 为什么用an而不用a呢 连句子:walk,do,you,how,minutes,many 1、How many times____you____to Dalian?Only once.A.did,go B.do,go C.have,gone D.have,been2.How soon ____the meeting____(begin)?In ten minutes. A candle burns out in sixty minutes . How many minutes will it take five candles burning togetherA 300minutesB 200minutesC 100minutesD 60minutes快点回答啊~我急用呢~ How many people in Canada? How many birthdays in May? Jeff starts work at 8.45am and finishes work at 5.15pm.He has 90 minutes of breaks.How many hours does he work in 5 days? 英语判断,1How many minutes are there in a hour?a ture b false已知答案为B,求为什么?