প্রাইমারি প্রধান শিক্ষক নিয়োগ - ২০২৫১টি পরীক্ষায় এসেছেপ্রশ্ন ৬By exercising regularly, he keeps himself fit. (Make it complex)কIf he exercises regularly, he keeps himself fit.খIf he will exercise regularly, he keeps himself fit.গBy exercising regularly, fitness is maintained.ঘIf he has exercised regularly, he keeps himself fit.উত্তর দেখুন