May I take your order?

Question

May I have your order?
(Are both OK? Which one is popular?)

1. Yes, I'll have a fish sandwich and a Coke.
2. Yes, I'll have a fish sandwich and a coke.
(When answering the question, do we have to capitalize "C" in Coke?)

Answer 1

Both the first two sentences are correct. The first is probably the more popular.

Yes, Coke should be capitalized since it's the name of a trademarked drink.

Answer 2

We have _____ burgers _____ a coke bottle. Fill in the blanks with a suitable pair of conjunction