Greenland, ＿＿＿＿＿island in the world, covers even two million square kilometers. 

(大连市高三双基测试卷)Hoping to be stronger to compete with the world’s best, Murry has put on about 4 kg by eating twice as much as his _______ amount. 

—Why do many people keep dogs as pets?—Because they are our ____ friends and they never desert their masters.

The president of the World Bank says he has a passion for China, ______ he remembers starting as early as his childhood. 

While the government says there is a(n) ______ supply of houses, prices of apartments have been going up these years.