Not only did i serve in the army, but in the navy for a short while too. 1.i also served 2.i will also serve 3.also i was served 4.have also been served

The answer that most appropriately completes the line of thought is 1. I also served. It parallels the sentiment of the first half of the sentence perfectly. However, if the answers could be disregarded, it would have been better to remove the “also” in all of them because it is rather redundant with the “too” already located at the end of the sentence.

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.

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