Usually you would add and, or you could add a coma. But make sure you have no words that make no sense
Answer:
you have to put the sentence down, hun
Explanation:
The words <em>could have been baking </em>are considered to be A) compound verb since it consists of more than one word.
The question ask to choose among the following choices that best answer that could fit and support the statement in your question, and based on my further analysis about it, I came up with an answer of letter D. Substance. I hope you are satisfied with my answer and feel free to ask for more