৫১তম বিসিএস ফাইনাল মডেল টেস্ট ও রিভিশন১টি পরীক্ষায় এসেছেপ্রশ্ন ২২Identify the best passive form: "I helped her solve the problem."কShe was helped solving the problem.খShe was helped solve the problem by me.গShe was helped to be solve the problem by me.ঘShe was helped to solve the problem by me.উত্তর দেখুন