how long is it ___the class ___?A when .. begins B when .. began C since.. had begun D since .. began选择D 是为什么么呢

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how long is it ___the class ___?A when .. begins B when .. began C since.. had begun D since .. began选择D 是为什么么呢
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how long is it ___the class ___?A when .. begins B when .. began C since.. had begun D since .. began选择D 是为什么么呢
how long is it ___the class ___?
A when .. begins B when .. began C since.. had begun D since .. began
选择D 是为什么么呢

how long is it ___the class ___?A when .. begins B when .. began C since.. had begun D since .. began选择D 是为什么么呢
D
it is +一段时间+since+一个过去的动作
翻译为：课开始了多久了?

how long 对一段时间提问， since the class began 表示一段时间

How long is it? How long is it?同义句 How long is it 中文怎么读 HOW long is it's taii how long it takes 和how hurt it is how long is 可以指时间吗 也可以指距离吗 可以问it is how long吗?能问how long it how long it how long dose it和how long does it的区别说错了 how long dose it和how long is it的区别 ___from Beijing to ParisA.How long way it is B.What a long way is it C.How long way is it D.What a way it is 请翻译一下句子how,long,is,it How long the river is it'怎么用英语翻译 How long is it since your father_____an engineer?（become） how long is it since you went to the seaside? how long way it is 这个句子对不对,为什么? How long is your _from his hometown to his work placeA.How far is it B.How long the way isC.How far the way isD.How long is it理由呢? ___ is the bridge over the river?It is three milesA How long B How farC How manyD How often ______from Beijing to LondonA.How long way it is B. What a long way it is C.How long way is it D. What a long way is it ________from shanghai to Paris!A How long way it is B What a long way it is