1. a. Tara sent Brian, who is her boyfriend, an email.
b. Tara sent an email to Brian, who is her boyfriend.
2. a. Brian sent Daniel, who is his brother, a text message.
b. Brian sent a text message to Daniel, who is his brother.
3. a. Daniel wrote Sophia, who worked with him in a project, a letter.
b. Daniel wrote a letter to Sophia, who worked with him in a project.
4. a. Sophia told Melanie, who is her best friend, the news.
b. Sophia told the news to Melanie, who is her best friend.
5. a. Melanie gave Son, who studies with her in the same class, a phone call.
b. Melanie gave a phone call to Son, who studies with her in the same class.
6. a. Son heard Melanie, who studies with him in the same class, the news.
b. Son heard the news from Melanie, who studies with him in the same class.