YOU SAID:

we are a dog in a cage in high school in the second grade

INTO JAPANESE

私たちは中学2年生のおりにいる犬

BACK INTO ENGLISH

We got the dog in the eighth grade and

INTO JAPANESE

私たちは中学2年生で犬を飼って

BACK INTO ENGLISH

We are a junior high school second grader keeping a dog

INTO JAPANESE

私たちは犬を飼っている中学2年生です

BACK INTO ENGLISH

We are a junior high school second grader keeping a dog