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A how much cost they are B how much do they cost C how much they cost D how much are they cost.我搞不清楚BC的区别,希望明白的人给我讲明白些.
人气:274 ℃ 时间:2020-02-20 15:11:28
解答
如果是单独的一个问句则用B不能省略助动词do,如果作为从句,就要省略助动词,还要改成陈述语序.
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