To my understanding, a high school graduate has already reached a point in his/her life ______ he/she is supposed to make decisions of his/her own.
I get the bicycle for _____.My friend gave it to me when she bought a new one.
It’s really difficult to ______ what he is trying to express.
We all felt a sense of ______ when we saw so many overseas Chinese coming back safe and sound from Libya.
Scientists say it may be five years ______ it is possible to test this medicine on human patients.
Last month, the Japanese government expressed their thanks for the aid they ______ from China.