——How long have you been here in Sydney ——___last Wednesday,

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——How long have you been here in Sydney ——___last Wednesday,I ___two days before you
A.Since ; arrived B.On ; have been C.Since ; went D.On ; have arrived
,为什么?

since表示从某一点开始,前面用how long提问,提问的是来了有多久,那用since回答自然回答的是从星期三开始的这段时间.再看下一个选项,arrive可以是不及物动词,后面可以不跟任何东西表示到达,而go的过去时态went就不行,只能说明出发这个动作而已.如果你对on疑惑的话,on通常也与某个时间点相连,但它表示的就是在这个时间点上,对以后没有任何影响,这就与前面的have been的完成时态相违背了.

--how long have you been here in sydney?--____last wednesday 几道英语题求解和理由——How long have you been here in Sydney?——______la how　long　have you been in China?——Since last Wednesday 啥意思 How long have you been in Sydney?Since last Wednesday .I ___ —How long have you lived here? —How long have you been here,Susan?—Only about h —How long have you been here?—For about 10 years,And I _____ —Have you been here long?—_________. 1.How long have you been here? How long have you been working here? How long have you been here? How long have you been in America?——I was five横线中应填什么