Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A., B., C. and D. on the right side of the paper. You should choose the ONE that best fits into the passage. Then mark the corresponding letter on the Answer sheet.
During recent years we have heard much about “race”: how this race does certain things and that race believes certain things and so on. Yet, the 【A1】______ phenomenon of race consists of a few surface indications. We judge race usually 【A2】______ the colouring of the skin: a white race, a brown race, a yellow race and a black race. But 【A3】______ you were to remove the skin you could not 【A4】______ anything about the race to which the individual belonged. There is 【A5】______ in physical structure, the brain or the internal organs to 【A6】______ a difference.
There are four types of blood. 【A7】______ types are found in every race, and no type is distinct to any race. Human brains are the 【A8】______. No scientists could examine a brain and tell you the race to which the individual belonged. Brains will 【A9】______ in size, but this occurs within every race. 【A10】______ does size have anything to do with intelligence. The largest brain 【A11】______ examined belonged to a person of weak 【A12】______. On the other hand, some of our most distinguished, people have had 【A13】______ brains. Mental tests which are reasonably 【A14】______ show no differences in intelligence between races. High and low test results both can be recorded by different members of any race.【A15】______ equal educational advantages, there will be no difference in average standings, either on account of race or geographical location. Individuals of every race 【A16】______ civilization to go backward or forward. Training and education can change the response of a group of people 【A17】______ enable them to behave in a 【A18】______ way. The behavior and ideals of people change according to circumstances, but they can always go back or go on to something new 【A19】______ is better and higher than anything 【A20】______ the past.