1) Jack says to Mary."You are beautiful today" 2) "Are you my new partner in this company, Anna?" said Tom 3) Mary said: "I often spend my weekends here with your sister, John"

1). Jack says to Mary that she is beautiful that day.

2) Tom said to Anna if she were his new partner in that company.

3) Mary said to Tom that she often spent her weekends there with his sister.

1) Jack says to Mary."You are beautiful today"

=> jack said to mary that she was beautiful that day 
2) "Are you my new partner in this company, Anna?" said Tom

=> tom said to anna if she was his new partner in that company
3) Mary said: "I often spend my weekends here with your sister, John"

=> mary said to john that she often spent her weekends there with his sister