______that the earth was flat?A、Used it to be thoughtB、Did it used to be though

游客2025-03-28 13

问题 ______that the earth was flat?

选项 A、Used it to be thought
B、Did it used to be thought
C、Was it used to being thought
D、Does it used to be thought

答案 A

解析本题考查的是It used to do句型的疑问句形式。可以为“Used it to do．．．?”或者“Did it use to do．．．?”因此A项为正确答案。

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