Money ________ happiness; you need a certain amount (数量) to live comfortably, but more money does not necessarily buy more happiness.
Living alone in the central desert in Australia has its problems, _________obtaining water is not the least.
Tom appreciated_________the good chance to study in Oxford since he graduated from No. 4 High School in Shenyang.
Let’s make contributions to_________world of the 21st century, _________world of success and understanding each other.
—Where can we spend our summer vacations this month? —Oh, _______ of the coastal cities will do if it agrees with you.
Behind the teaching buildings ______ a big lake surrounded by trees and flowers.