It was because it raised so many difficult questions the book took a long time to come out.
1、
【正确答案】
1、正确答案:强调句型错误,应在questions后加上that。
【答案解析】
解析:此句为强调句型,被强调部分是原因状语because itraised so many difficult questions,本句意为“正是因为产生了这么多难题,这本书用了很长时间才出版。”
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