what change needs to be made “It’s very hard work,” he says, “But running about between the camera and the drawing keeps me warm.”

"It's very hard work," he says, "but running about between the camera and the drawing keeps me warm."

The change that needs to be made in the sentence is to capitalize the first letter of the word "But." Here's how you can identify this change:

1. Read the sentence carefully: "It's very hard work," he says, "But running about between the camera and the drawing keeps me warm."
2. Notice that the sentence is a dialogue, and it begins with a quotation mark ("). The word "But" in this case is the start of a new sentence or independent clause, so it should be capitalized.
3. Look for the correct punctuation usage: In a dialogue, each new sentence or independent clause should start with a capital letter. If the sentence ends with punctuation such as a comma, question mark, or exclamation point, then the next sentence should start with a capital letter.
4. Apply the change: Capitalize the first letter of the word "But." The corrected sentence should be: "It's very hard work," he says, "But running about between the camera and the drawing keeps me warm."

Remember to always review punctuation and capitalization rules when writing or editing sentences, especially in dialogues or quotations.

The quoted sentence seems to be missing some appropriate punctuation marks. To make it more grammatically correct and clear, you can place quotation marks around the entire statement and use a comma to separate the introductory phrase. Here's the revised sentence:

"It's very hard work," he says. "But running about between the camera and the drawing keeps me warm."