Don't you think important to protect our earth A.that B.how C.it D.this

Don't you think important to protect our earth A.that B.how C.it D.this
Don't you think important to protect our earth A.that B.how C.it D.this

Don't you think important to protect our earth A.that B.how C.it D.this
C. it , 不定式作宾语补足语,为了避免头重脚轻,用it引导
希望能帮到你,祝更上一层楼O(∩_∩)O

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