Question

句子有没有语法错误?

when lease term of the house will expire at that day,I wen to the house and took back key。when I checked facilities at the house,I suddenly found that commode was replaced new one in the bathroom.
房子租期将满的那天，我去看房子，收回钥匙。我在检查房内的设施时，突然发现卫生间里的马桶(commode)竟然换了新的

Answer 1

On the day of lease expiration, I went to my house and get back my key. When I was checking the facilities in the house, I find out that the commode has been replaced with a new one.