His book is new and is old. (my mine, her)

His book is new, and mine is old.

Explanation:

"Her is old" wouldn't make grammatical sense unless it was "Hers is old", with the s on the end of her.

His book is new and mine is old

Explanation:

Hope it helps! can u mark as brainlest

(i can't select because there is no options but, i will answer) using evidence effectively. most of the assignments you will do in university will ask you to make an argument, to take a stance, or to prove a hypothesis. the best way to do this is to research the topic, develop a thesis statement, hypothesis, or claim and then use evidence to support this claim.

1. list two reasons why fossil fuels should continue to be used as a source of energy in america.