জব সল্যুশন [৯ম - ১৩তম গ্রেড]১টি পরীক্ষায় এসেছেপ্রশ্ন ২৬We ought to have saved our environment (make it passive)কক) Our environment ought to have been savedখখ) Our environment ought to have been saveগগ) Our environment ought to saveঘঘ) Our environment ought to have savedউত্তর দেখুন