The old woman felt disappointed for she got nothing in _____ for her kindness.
It will be about 100 days __________the College Enhance Examination comes.
The haze or smog was so serious that the winter running _________.Some students complained as they ran
—What about __________ lecture yesterday?—Well,__________ most boring one indeed.
I think the biggest problem in banning smoking is ______ people can buy cigarettes easily.
— Have you told your parents about your decision? — Not yet. I can hardly imagine ______ they will react.