2. 'Who owns this revolver?' asked the detective. 3. 'Who left the front door open?' my mother asked.
4. How can I get to Fatehpur Sikri from Agra?' the tourist asked.
5. Can I take a message?' I asked the woman on the telephone.
6. 'When are you leaving for Australia?' Ravi's friend asked.
write the following question in indirect speech.​

answer: b (host)

viruses use the cells of living organisms to reproduce. the cell which is used by virus is called as "host cell". it is a living cell in which virus multiplies, example bacteria, plant or an animal cell.

in this, the virus is a parasite, which uses host cell for its benefit (reproduction) by using the cell machinary of host cell.