Brain told you that there wasn’t anyone in the room at that time, _____?
A. was there    B. wasn’t there     C. didn’t he      D. did he     

Brain told you that there wasn't anyone in the room at that time, ________?

[　　]

Brain told you that there wasn't anyone in the room at that time, ________?

[　　]

Brain told you that there wasn’t anyone in the room at this time, ______?

1. A.
   was there
2. B.
   wasn’t there
3. C.
   didn’t he
4. D.
   did he