Talking with Elder#!#On Phone

Elders always instruct you to get out to the home to interact with relatives and others and play outdoor games but not to spend time continously with television, phone and internet. Why the children of your age are instructed same in each home ?

Fill in the blanks with elder, older eldest, oldest, elders: Arun is his ...... son.

Fill in the blanks with elder, older eldest, oldest, elders: She is my ...... sister.

Fill in the blanks with elder, older eldest, oldest, elders: This is the ...... pen in the shop.