GIÚP MÌNH VỚI Ạ. MÌNH ĐANG CẦN GẤP 16.Climate change and global warming are the main reasons of natural disasters. A. Natural disasters are mainly caused by climate change and global warming. B. Natural disasters mainly cause climate change and global warming. C. Climate change and global warming are mainly caused by natural disasters 17. Food and medical supplies had been delivered when clothes were gathered. A. They delivered clothes after gathering food and medical supplies. B. After clothes were gathered, they delivered food and medical supplies. C. They gathered clothes after delivering food and medical supplies. 18. The strong winds last night scattered debris across the seaside. A. Debris was scattered across the seaside last night. B. Debris was scattered across the seaside by the strong winds last night. C. The strong winds last night created debris at the seaside. 19. The forest fire had raged for two hours by the time rescue workers put it out. A. Rescue workers put out a two-hour forest fire. B. The forest fire was put out after two hours. C. Rescue workers put out the forest fire in two hours. 20. In 2004, a tsunami suddenly destroyed a part of Indonesia. A. A part of tsunami suddenly destroyed Indonesia in 2004. B. A part of Indonesia was suddenly destroyed by a tsunami in 2004. C. C. Indonesia suddenly destroyed a tsunami in 2004.