My parents live in a small village. They always keep candles in the house _____ the electricity is cut off.
If we the other road, we might have arrived here in time for the meeting. (2010 .陕西)
If you to see Mary, what would you tell her?
If the sea to rise 50 feet, India would become an island.
If you hadn’t gone with Tom to the party last night, .
I it to him if he didn’t understand.