We can use the genitive form and the structure in the same phrase (the double possessive) when we want to make the first noun specific, but at the same time shows that it is one of several. We usually use the indefinite article with this pattern: I heard the story from a friend of ...
Zuhana Grammar for IELTS: Especially vs Specially Exercises Janice Thompson Advanced Grammar for IELTS: Confusing Verbs Janet Our Offices Bengaluru Gurgaon City Scape Gurgaon BPTP Kolkata Chennai Hyderabad Mumbai Bengaluru 2nd Floor, Building 208 Hustlehub Tech Park Building, Somasundarapalya Main Rd, ...