The rate of racial progress varies in different areas of the country, but in the past ten years _________ more improvement

More and more old people are skiing but it has ______ to do with snow and slopes: this type of skiing stands for Spending the Kids Inheritance.

Not until I began to work ____ how muchtime I had wasted

Different tastes among tourists from outside the mainland ________ the list of the country’s attractions．

A few days after the interview, I received a letter _____ me admission to the university.