We suddenly saw the bus about to leave and had to run _____ to catch it.

It was raining heavily. Little Mary felt cold, so she stood ___to her mother.

To understand the grammar of the sentence, you must break it       into parts. 

His health is ______improving. I'm sure he will come back to work soon.

 — 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.