Choose the word or phrase (a, b, c or d) that best fits the blank space in the following passage.
Tropical forests have (51)______ us with very many sorts of plants for food, (52)_______ and industry. They could probably supply man more. They also reduce(53)_______ and droughts, keep the water clean, and slow down the Greenhouse Effect, (54)___ the tropical forests are (55)______ destroyed to make (56)______ for things like farms, ranches, mines, and hydroelectric (57)________. About 20 million hectares are lost each year – an area more than twice the size of Austria. The World Wildlife Fund is working to (58)_______ and save the forests that are (59)_________ danger; to plant new trees for fuelwood and to slow down the Greenhouse Effect and to (60)_____ governments to think about the forests and their importance when giving international aid.
53___________
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Lời giải:
Báo saiGiải thích: 53. a. sa mạc b. lũ lụt c. nhiệt d. mối nguy hiểm
xét nghĩa ta chọn b
Tạm dịch: Chúng cũng làm giảm lũ lụt và hạn hán, giữ nước sạch và làm chậm Hiệu ứng Nhà kính,