There is no __left for the new comer

Question

--There is no __left for the new comer.
--__that it is necessary to prepare another.
A.room ;I have been told
B.seat;I said
选A
为什么不选B？

Answer 1

I said 与后面的宾语从句it is necessary to prepare another时态不能搭配

Answer 2

room 是空间的意思 而且第二道题只能选;I have been told

Answer 3

no room是固定用法
而且第二句话不可能是过去完成时的被动语态