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We can protect our country by _____ the air,the water and the land.A.not polluting B.not pollute C.not to pollute D.to not pollute解释!

题目详情
We can protect our country by _____ the air,the water and the land.
A.not polluting B.not pollute C.not to pollute D.to not pollute解释!
▼优质解答
答案和解析
We can protect our country by (A.not polluting) the air,the water and the land.
我们可以通过不污染空气、水和土地,来保护我们的国家.
by doing,通过某种手段方式.在介词by的后面要用动名词doing的形式作宾语,不能用不定式to do,而否定词not要放在doing之前.