The correct sentence is "The trees' trunks are skinny"
First two are grammatically incorrect while the fourth would have you believe that one tree has multiple trunks.
Writer's journals are mainly used for "It's used so the author can write down any idea he has for a book." <span>Any time the writer has an idea for a plot, character, conversation, name, event, description, etc. He <span>or she can write it down and refer to it later when she wants to make a story.</span>
Hope this helps!
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Answer:
What's the reading though could you attach the reading with your question please. Thx
Explanation: