The pen that I bought was soon lost by me.
If you replace the letter T in these words, you get:
1) There
2) Then
3) That
You could say "el dorado," which could be translated as "the golden." Technically, "dorado" refers to the color of gold, so it could also mean "the gilded" or "the gold-colored," but I think it's the phrase you're looking for.
Mantén la calma y haz tu trabajo
My google translate says write down the festives celebrated in your town
