As everybody knows，kangaroos are native________Australia and are often regarded as one of Australia’s national treasures.

Check carrots，potatoes, onions and any other vegetables_____   and immediately use or throw away any which show signs of rotting.

September 30 is the day_______which you must pay your bill.

Jane is in a hurry because the train to the airport leaves _______ half an hour.

（2014年(春)重庆市高三考前冲刺测试卷）6.  Italy calls an emergency meeting to save the ancient city of Pompeii _____ falling down.

（2014年福州市高三适应性练习）23. Don’t bother your father tonight ------ he’s got a lot ____ his mind.

My father warned me      going to the West Coast because it was crowded with tourists.

（2014年北京市西城区高三5月二模试题）33. Based on a true story, the film shows a hero racing ______ time to get back the stolen papers.

(2014·山东实验中学二模)—May I trouble you with the question?
—Sorry，but it is________my knowledge.

(2014·海南洋浦中学测试)He is famous both________a novelist and poet but he is more famous________his novels.