(while the boy was walking down the street),the UFO landed 对括号里的内容提问
问题描述:
(while the boy was walking down the street),the UFO landed 对括号里的内容提问
____ ____the UFO land?
答
when did
不会可以问我 我也是初二的哦可以解释一下吗,谢谢