There are many things in different areas ________ we can do to reduce the possible dangers of AIDS.
Statistics show that house prices in the last 2 years have risen they had expected.
—I wonder why he has been acting so strangely these days. —Recent pressure at work may his behavior.
It was not rare(稀少) in that people in fifties were going to school for further study.
both his eyes focused on his book, he didn’t notice me enter the room.
—It’s five years since I here. —Where do you work now?