It’s said that non-smokers who are always around smokers have almost the same ______ of suffering from lung cancer.

Soon after the mud-rock flow hit Zhouqu, Gansu Province, many soldiers came to the ______ as many people were trapped underground.

Unless you change your ________ towards your studies, you won’t make any progress, I believe. 

—How did you do in the driving test yesterday? —I had a narrow ______. My month-long practice gave me some comfort.

Our lab is on the third _____ of a six—______ building.