英文语法时态等句子的问题 选择!

英文语法时态等句子的问题 选择!
i'm next on the list to go out there,(am not i/are i/aren't i)
he's rarely been away for this long before,(is he/hasn't he/has he)
so you think he'll be back before November,(shall he/will he/do you)
Nobody's disagreed with the latest proposals,（did he/has he/have they)
We'd better not delay reading this any longer(should we/did we/had we)
Now's hardly the time to tell me you didn't need a test at all(did you/is it/isn't it)