Making friends is not easy. Sometimes it can take years you become true friends with someone.
---_______ do you write to your e-friends? --- Almost twice a month.
It is really crazy ________ Peter to let his ________ son swim alone in the river.
My father has a habit of jogging ___________ the river in front of my house for an hour in the morning.
Lisa is _________ exchange student from Britain, but she knows a lot about China.
When I hear the name of Taiwan, I can’t help _____ Mount Ali and Sun Moon.A. thinking over B. thinking ofC. thinking about