- উল্লেখিত প্রশ্নের সঠিক উত্তর হচ্ছে receiving.

• Use of Look forward: 
- Look forward এরপর to + verb + ing বসে।
Example:
I am looking forward to receiving your letter.
I am looking forward to seeing you.
My friend is looking forward to going to London.

Source: Applied Englishn Grammar and Composition, P.C. DAS.