Answer:
1. When work is advancing well, the person looks out the window and gets distracted by one thing after another.
2. After the individual returns to their desk, the noise awakens their dog, who walks over to them to be pet. The cat becomes jealous and wants to be pet as well, disturbing the owner.
3. The person then realizes that they have not yet gone outside for their daily bicycle ride, so they leave to do that.
4. As the individual is riding their bicycle towards the beach, what they were writing within the typewriter sits alone and forgotten.
Step-by-step explanation:
The topic sentence here is that "Keeping my mind on my writing is not easy when I stay at my grandmother's ocean-side cottage". The four pieces of evidence developing that thought are supporting ideas, adding more weight to the sentence, making it more real and having it make more sense. To find out what these four sentences could be, read the paragraph carefully, perhaps multiple times, and come up with all of the events that were mentioned. Then, divide those events into four categories. Here's how I did it.
First, I came up with a list of things that happen and add weight to the argument: the person looks out the window briefly, gets distracted by what they see, their dog wants to be pet, the cat wants to be pet too, the person remembers they didn't ride their bike yet that day, and they leave, forgetting their writing in the typewriter.
Next, I divided it into 4 - the more plausible things going together. Looking out the window, that's not directly related to anything else in the list other than getting distracted by one thing after another. The dog and the cat wanting to be pet are pretty similar ideas, so I put those together as one of the details. Remembering that they didn't go biking and leaving the house are directly related, so I put those together. Then, there is only one idea left - the writing forgotten in the typewriter.
Hope this helps! And I hope it's not too late :)