livemcq১টি পরীক্ষায় এসেছেপ্রশ্ন ২৮As they waited Rahim argued against war -কক) while his brother discusses the effects of pollution.খখ) while his brother discussed the effects of pollution.গগ) while his brother was discussing the effects of pollution.ঘঘ) while had brother discussed the effects of pollution.উত্তর দেখুন