It was the first time in two years that I________ my youngest son face to face.
Busy _____ he was, he tried his best to help you.
I learned a little Russian _____ I was at middle school.
_____ we got to the station, the train had left already.
_____ the rain stops, we' 11 set off for the station.
She was _____ tired _____ she could not move an inch.