Three hundred years ago people were (debate) ______ whether the earth or the sun

游客2023-09-24 49

问题 Three hundred years ago people were (debate) ______ whether the earth or the sun was the center of the universe.

选项

答案 debating

解析本题表示过去某个时间某事正在进行，所以应该用过去进行时。

转载请注明原文地址:http://tihaiku.com/zcyy/3042765.html

相关试题推荐

随机试题

最新回复(0)

Themorechallengingthejourneyis,themore________(excite)theyoungpeople