I called him many times, but I didn’t get through, maybe his mum _ on the phone all the time.
Would you like to _____ us in our discussion?
It’s said that corn was grown a lot in Tibet _______.
Rather than _____ on a crowded bus, he always perfers _____ a bike.
As I became older, I came to like ____ things.
The doctor was reading an article ______ the class.