We have been waiting since 8.00(改为否定句) she has been reading for an hour(对for an hour提问)

问题描述:

We have been waiting since 8.00(改为否定句) she has been reading for an hour(对for an hour提问)
He has been running since i arrived(对since I arrived提问)
谢谢了这些句型转换

We haven't been waiting since 8:oo.
How long has she been reading
How long has he been running 我第一和第二和你的一样不知道对不对 再看看其他回答