YOU SAID:

It arrived today, and I finished the kit.

INTO JAPANESE

本日届き、キットが完成しました。

BACK INTO ENGLISH

It arrived today and the kit is complete.

INTO JAPANESE

本日届いてキットが完成しました。

BACK INTO ENGLISH

The kit arrived today and was completed.

INTO JAPANESE

本日キットが届き完成しました。

BACK INTO ENGLISH

The kit arrived today and was completed.