题目内容
—Do you know ________?
—To protect our only home — the earth.
A.how we should live a green life B.why should we live a green life
C.what we should live a green life for D.whether we should live a green life
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题目内容
—Do you know ________?
—To protect our only home — the earth.
A.how we should live a green life B.why should we live a green life
C.what we should live a green life for D.whether we should live a green life