YOU SAID:

The boss attended the school, so the restaurant closed down

INTO JAPANESE

上司が学校に通ったので、レストランは閉鎖された

BACK INTO ENGLISH

My boss attended school, so the restaurant was closed

INTO JAPANESE

私の上司は学校に通っていたので、レストランは閉店していた

BACK INTO ENGLISH

My boss was at school, so the restaurant was closed.

INTO JAPANESE

私の上司は学校にいたので、レストランは閉店しました。

BACK INTO ENGLISH

My boss was at school, so the restaurant closed.

INTO JAPANESE

私の上司は学校にいたので、レストランは閉店しました。

BACK INTO ENGLISH

My boss was at school, so the restaurant closed.