Scientistshavemanytheoriesabouthowtheuniverse
问题详情：
Scientists have many theories about how the universe ______ into being.
A. came B. was coming C. had come D. would come
【回答】
A
知识点：一般过去时及其被动式
题型：选择题
问题详情：
Scientists have many theories about how the universe ______ into being.
A. came B. was coming C. had come D. would come
【回答】
A
知识点：一般过去时及其被动式
题型：选择题
