839.The present situation is very complex, so I think it will take me some time to___ its reality.
A.make up
B.figure out
C.look through
D.put off
840.American Indians ____ about five percent of the U.S. population.
A.fill up
B.bring up
C.make up
D.set up
839.答案是B;
make up 组成,化妆,编造;figure out 理解,弄清楚;look through 浏 览;put off推迟。
840.答案是C;
句意:美洲印第安人占美国人口的.5%。fill up填充;bring up 培养,抚养;make up占据;set up建立。