Mrs. Hanson, a housewife bent on getting ________ higher education, has been going to college, a few courses at ________ time, for 7 years.
It is ___ the customers’ needs that has made chain stores so popular in big cities in China.
Many people are still in_____ habit of writing silly things in _____ public places.
Niagara Fall is a great tourist ________, drawing millions of visitors every year.
The children were warned of not being too_________about things they are not supposed to know.
--- I regret ________ you that John has been fired. --- I can hardly believe my ears. He is such a fine worker.