He _______ to go to Tsinghua University to study after graduating from high school, so he is working very hard.
It is illegal for a public official to ask people for gifts or money __________ favors to them.
We only had $ 100 and that was __________ to buy a new computer.
As far as I am concerned, education is about learning and the more you learn,__________.
He preferred __________ rather than __________.
The visiting professor giving lectures to students __________ invited to meetings at times.