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Alaska____to the United States,perhaps Russian____there now.

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Alaska____to the United States,perhaps Russian____there now.
A.were not be sold;is spoken B.were not sold;is spoken
C.had not been sold;would be spoken D.had not been sold;was spoken
Alaska____to the United States,perhaps Russian____there now.
C,这个句子有点复杂,是错综时间虚拟句,就是主句和从句的表示时间不一样,要分别来看待,从句表示与过去的事实相反,用过去完成时,主句的与现在事实像反,就用would +动词原形.
再问: 类似这种句子应该怎样判断主句与从句?
再答: 按语法来讲,Alaska前面应该有个if,但是这里也不能说省略,因为如果省略了,had要提前,所有这个地方我也有点疑惑。这个句子就只能从意思上去理解了,如果阿拉斯加......, 也许.....。如果引导的就是个条件句。 一般的情况下,这里应该归为含有if的虚拟句,if引导的就是从句,如果if省略的话,要把were、should、had提前。 如:If it should rain tomorrow, we should have to put off the match. Should it rain tomorrow, we should have to put off the match.