In this formula you are taking the contents from different cells and putting them together into one cell with space included. To accomplish this, you use the ampersand (&) sign to combine text and quotations (” “) with a space between them to show spacing.
This is what your formula will look like
=A1&” “&B1&” “&C1&”.”
If you need to add an additional word to your work here is what that formula will look.
=A2&” “&”just”&” “&B2&” “&C2&”.
DiG with Data 