After the very active and successful tenure(任职) of office by the Senegalese President as thehead of the Organization of African Unity,it was highly logical to think that the successor,whoever he might be,would have a difficult task in doing a better job.The Congolese president set to work as soon as he was elected.His first step was to suggestto the dean of heads of State present in the Ethiopian capital,President Kenneth Kaunda ofZambia,to summon a meeting of the leaders of countries that lie close to South Africa.Its aim: todefine a strategy in order to overcome the reprisals(报复行为) that the racist regime of Pretoria islikely to take against its neighbors in case sanctions are imposed by the international community.President Sassou Nguesso has already undertaken a number of trips abroad.He thus went toHarare (Zimbabwe) where he delivered a speech,on September 1,on behalf of Africa before thesummit meeting of non-aligned(不结盟的)nations.At the end of September,he was in New York,for a statement before the General Assemblyof the United Nations,and then in Washington,for talks with high-ranking members of the ReaganAdministration.He then went to Ottawa,for consultations with leading members of the Canadiangovernment.The Congolese president's aim,in all these endeavors,is to convince still reluctant countriesof the imperious necessity of imposing sanctions against the racist regime of Pretoria.11.In the first paragraph,the word"successor" refers to（）.A.a person who enjoyed a successful career in politicsB.a person who was very popular in the political arenaC.the person who was to lead the organizationD.the former head of the organization12.According to the passage,Denis Sassou Nguesso（）.A.knew that it was very difficult for him to be electedB.is CongoleseC.was elected without any oppositionD.has held a meeting in the Ethiopian capital13.Which of the following is NOT mentioned in the passage?A.President Sassou Nguesso has decided to visit as many African countries as possible.B.President Sassou Nguesso made a suggestion to President Kenneth Kaunda that a meeting be held of the leaders of countries that lie close to South Africa.C.President Sassou Nguesso went to Harare and delivered a speech there.D.If sanctions are imposed against South Africa by the international community,the racist regime of Pretoria will probably take revenge on its neighbors.14.We may draw the conclusion that President Sassou Nguesso has been working really hard to（）.A.prove himself a trustworthy presidentB.seek financial support from some advanced countries to promote African economy.C.show to the whole world the strength and power of the Organization of African UnityD.convince some reluctant countries that it is highly necessary to impose sanctions against the racist regime of Pretoria.15.This piece is most probably taken from（）.A.a newspaper reportB.a biographyC.a history bookD.a Who's Who