Last week, our class was     1     duty in cafeteria for self-management. On the first day, I was shocked to see so much leftover food     2     (throw) away. What a waste! Concerned about it, my classmates and I had a     3     (heat) discussion on how to solve the problem. Lots of good ideas came up, such as holding class meetings, putting up wall newspapers and charging a fine for wasting food. Finally we all agreed that wall newspapers would be     4       (good) choice.

The next day, we put our idea into    5     (real). Towards lunch time, we put up     6     wall newspaper outside the school cafeteria,     7       (call) on students not to waste food. Many students gathered around to read and expressed their support. To my great delight, there were changes soon. In the cafeteria, I found the trays returned after lunch all empty     8     any leftover. Food       9    (save) and the dining hall was cleaner. Seeing this, I felt relieved and took pride in     10     we had done.

There     1     (be) no lights in sight but the night sky glowed (发出) a dusky yellow, because the Amazon was burning. The yellow flames engulfed (吞噬) trees     2     lit up the sky. During the day, the sunshine was blocked     3     thick smoke. So far, the fire     4     (put) out.

The government has recorded 72, 843 fires. The fire is just one of     5     (they) in the Amazon, the world’s     6     (large) rainforest and a fighter against climate change. According to Brazil’s space research agency INPE, the wildfire has decreased by 17 percent so far this year compared to the same period in 2018.

Environmental     7     (group)said the policies of the government encouraged deforestation (采伐森林) of the Amazon,    8     led to more fires. But the government posted a report and wanted     9     (argue) against that. The government claimed that non-governmental organizations     10     (angry) set fire to the forest after it cut their funding.