Hi Sherrie,
- Who is your email service provider?
- Are you using any email client like outlook, Windows mail?
If you are using outlook, then I would suggest you to press Ctrl key and select the emails you want to delete and press delete key to get emails deleted.
If you are using Windows mail to select multiple messages, hold down the CTRL key and click the messages you want to delete. And press delete key.
If you are using any other email client, then provide us more information to assist you better.