The numerical format for spanish its the same as in english ww.
Travelers talk ( 2 words) with the tour guides and may change plans
hope i help
The answer would be servimos
Translating the sentence, we get something along the lines of Raul ____ the pen to write. There's one word we can see falls into the blank, and that's used. Now all wee need to do is translate used into Spanish. One way to say used in Spanish is usado, so usado is the word that best completes the sentence.