the air is becoming dirtier and dirtier because people are p

正确答案为：
The air is becoming dirtier and dirter because of being polluted by people.
空气越来越混浊,是因为人们的污染.
如有格式要求,
^___^
另外千万别忘记采纳哟!
再问： people are polluting the air .______ ______ ______it is becoming dirtier and dirter .
再答： 你好！正确答案为： as a result 因此，结果 ^___^ 祝你进步! 另外千万别忘记采纳哟！
再问： 谢，再问些： I—— —— take a train ____a plane when I'm traveling. he's___ ___ playing the piano ___ ___ singing.
再答： 你好，应该是 would rather than 当我旅游时，我宁愿坐火车也不愿坐飞机。 not only but also 他既弹着钢琴还唱着歌
再问： 太感谢你了，我英语极差，现在我再帮我妹妹上网，父母都睡了，我偷偷起身帮她赶作业，唉，做姐真惨。 we are __ __ __to protect the environment by planting trees.
再答： 填三个单词吗还是一个？ 如果是一个，堵supposed be supposed to 应该 不过建议你可以采纳后再提问 因为你已经追问超过三次 继续追问会一直扣你的财富值 你重新提问，我仍然会给你回答的