Bucket seats are an optional feature on this model.
the homework we had today was optional because we were really good in school today ......but still everyone did it
The word problem was optional.
The math question was optional, but every one did it.
Joshua Goschnick and Lachlan Thomas, (By) is optional
He could do arithmetic in his head *really fast. *optional
Yes, in most cases, you should use a comma after the phrase "every day" at the beginning of a sentence to separate it from the rest of the sentence. For example, "Every day, I go for a run in the park."
There is a high probability that this sentence will not qualify as a good sentence.
"Etc" will usually come at the end of a list, so no. I believe that it is optional to put a period after it if it is not at the end of a sentence.
Complex (APEX)
there is cayro syrup and maple syrup those are very good options
A good concluding sentence for pandas
what is a good sentence for the word opposite