Read and answer the questions below. (5 points) The world's oceans are so vast that they can cope with the present levels of pollution. However, little is known about the long-term effects of such slow poisoning. The most serious problem of modern time is that ... . What could be best replaced wealth, goods or products people can use? 70. What is a difficulty which needs attention and thought?
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17 tháng 8, 2019
trong Tiếng Anh lớp 9