শিক্ষক নিবন্ধন (NTRCA) প্রস্তুতি [১৯তম]১টি পরীক্ষায় এসেছেপ্রশ্ন ১৮Who has completed the assignment? (passive)কBy whom has the assignment been completed?খBy whom has the assignment being completed?গBy whom has the assignment be completed?ঘBy whom has the assignment to be completd?উত্তর দেখুন