YOU SAID:

i lost my apple when i was in school yesterday because of my book

INTO JAPANESE

昨日学校にいたとき、私は本のためにリンゴをなくした

BACK INTO ENGLISH

When I was at school yesterday, I lost an apple for a book.

INTO JAPANESE

昨日学校にいたとき、私は本のためにリンゴをなくした。

BACK INTO ENGLISH

When I was at school yesterday, I lost an apple for a book.