题目内容
请用本单元所学短语的适当形式填空。
Scientists have many theories about how the universe first ________ ________ ________．
答案：
解析：
解析：
|
came into existence/being |
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题目内容
请用本单元所学短语的适当形式填空。
Scientists have many theories about how the universe first ________ ________ ________．
|
came into existence/being |