THE AGREEMENT ENDED SIX-MONTH NEGOTIATION. IT WAS SIGNED YESTERDAY...

38. The agreement ended six-month negotiation. It was signed yesterday.A. The agreement which was signed yesterday lasted six months.B. The agreement which ends six-month negotiation was signed yesterday.C. The agreement which was signed yesterday ended six-month negotiation.D. The negotiation which lasted six months was signed yesterday.Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correctanswer to each of the questions.Rain forests cover less than six percent of the earth’s area, but they have 100,000 kinds of all the kinds ofplants on the earth. Three-fourths of known kinds of plants and animals call the rain forest their home.Twenty percent of our different kinds of medicine comes from rain forests. The glues on an envelope and inshoes come from tropical plants. Rain forests provide materials for hundreds of other products.Rain forests are also very important to the world’s climate. The Amazon rain forest alone receives aboutthirty to forty percent of the total rainfall on the earth and products about the same percentage of the worldoxygen. Some scientists believe that the decreasing size of rain forests will affect the climate on the earth,making it uncomfortable or even dangerous for life.Saving rain forests is an international problem. One country, or even a few countries, cannot solve theproblem alone. The nations of the world must work together to find a solution before it is too late.