If the room had been brighter, I would have been able to read for a while before bed time.

If the room had been brighter, I would have been able to read for a wh

1.	If the room had been brighter, I would have been able to read for a while before bed time.
A.	If the room had been brighter, I would have been able to read for a while before bed time.
B.	If the room was brighter
C.	If the room are brighter
D.	Had the room been brighter
Answer» D. Had the room been brighter