He was appointed _____ a very important post in the West, where he would improve himself better

Do you remember ________ we got to know each other—It was in 2000 ________ we both studied in Nanjing University.

I’d like a piece of papter_______.

aid that Williams will come to help us.—wedepend on him, we have to do most of the work ourselves.

The professor, ____ some of his assistants , _____ to attend our discussion.