— Do you know the reason why the Whites got divorced? — No, they haven’t quarreled with each other since they got married. _______, they broke up finally. 

The boy managed to climb out of the car, ________ unhurt

—The earthquake last night was really terrifying.—       , no people were injured or killed, and they escaped in time.

Though she did not know Boston well, she made her way_____to the Home Circle Building.

---Fish need water to survive; _____ , we human beings rely on air to live.