One of the most important questions they had to consider was__________ of public health
A new __________to teaching English, is being used here, and it has proven to be very helpful to the students.
—Do you know why the sun looks much bigger on the horizon?—Well, well, .I have never read about that.
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.