D. <u>T</u>he <u>B</u>attle of <u>O</u>kinawa, the last and largest battle of the <u>P</u>acific <u>W</u>ar, was one of the costliest battles of <u>W</u>orld <u>W</u>ar II for both <u>A</u>mericans and <u>J</u>apanese.
To become invalid
this word is used sometimes as “The milk expires 4/6/20” so basically it’s “The milk is invalid” or “The milk will be invalid 4/6/20”
It's A: black gates and barbed wire
i know this is right because i just had that question and got it right lol