When she first arrived in China,she wondered what the future might have ________ for her,but now all her worries are gone.
I still remember _______ to my home town when I was young.
The old sick lady entered the hospital, ______ her two sons.
_______ many times, he still couldn't understand.
Many things _______ impossible in the past are very common today.
The students in the university are all taking courses _______ a degree.