When he realized the police had spotted him, the man _______the exit as quickly as possible.
With the help of high technology, more and more new substances ______ in the past years.
I got caught in the rain and my suit _______.
The wet weather will continue tomorrow, when a cold front ______ to arrive.
His sister left home in 1998, and _______since.
When I talked with my grandma on the phone, she sounded weak, but by the time we ___ up, her voice had been full of life.