⒈People regard him as brilliant孩子们热烈地欢迎外宾.
⒉They have warned us to be careful of rats.
他们的家乡建立了一座发电站.
⒊People have piled plastic bags full of rubbish in streets.他们已提醒我们要注意老鼠.
⒋We have used nuclear energy to produce electricity.人们把装满垃圾的塑料袋子堆放在街上.
⒌Will more gas be needed?需要更多的煤气吗?