I will not give you the solution, but I will try to point you in the right direction by giving you more information. You do not need to create any extra variables. Functions have parameters which act as placeholders for values passed into the function. In this case the wordBlanks function already has those named parameters (see below):
function wordBlanks(myNoun, myAdjective, myVerb, myAdverb) {
When you click the Run the Tests button, the testing program behind-the-scenes will call the wordBlanks function and pass in the nouns, adjectives, verbs, and adverbs as seen in the example call below:
wordBlanks("dog", "big", "ran", "quickly");
All you have to do is concatenate a new string using the values passed into the function (the arguments) which will be in variables myNoun, myAdjective, myVerb, myAdverb (the parameters defined for the function). See the following lessons if you can not remember how to concatenate strings/variables together.
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/concatenating-strings-with-plus-operator/
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/appending-variables-to-strings/
Remember, you will need to come up with your own extra words and space and punctuation to add to the four values passed to the function.