Question

read the sentence.
typing on her laptop, the writer worked every morning to complete her science fiction novel.
now, revise the sentence to show that the writer worked extremely hard or without interruption.
typing on her laptop, the writer ______ every morning to complete her science fiction novel.
attempted toiled away pitched in

Explanation:

To show the writer worked extremely hard or without interruption, we analyze the options: "attempted" means tried, not showing hard work or no interruption. "pitched in" means to help, not about one's own hard work. "toiled away" means to work extremely hard and continuously, fitting the requirement.

Answer:

toiled away