30.The house was very quiet, isolated as it was on the side of a mountain.

　　31.I don’t mind your delaying making the decision as long as it is not too late.

　　32.Corn originated in the New World and thus was not known in Europe until Columbus found it being cultivated in Cuba.

　　33.We agreed to accept whoever they thought was the best tourist guide.

　　34.Having been judged the best in a recent science competition, the three students were awarded scholarships totaling $21,000.

　　35.I’d rather have a room of my own, however small it is, than share a room with someone else.

　　36.Whatever difficulties we may come across, we’ll help one another to overcome them.

　　37.Once the fourth biggest city in the United States, St. Louis has now become the 24th largest city.

　　38.The mother didn’t know who to blame for the broken glass.

　　39.In fact，Peter would rather have left for San Francisco than stayed in New York

　　40.Although a teenager，Fred could resist being told what to do and what not to do.

　　41.But for the help of their group, we would not have succeeded in the investigation.

　　42.They always give the vacant seats to whoever comes first.

　　43.Professor Wang, known for his informative lectures, was warmly received by his students.

　　44.It is high time that such practices were ended.