"This is a quote."  (OK)

**"This is a strong quote."**  (OK)

"This is a quote with an ellipsis at the end..."  (OK)

**"This is a strong quote with an ellipsis at the end..."**  (WRONG)

__"This is an underlined quote with an ellipsis at the end..."__  (WRONG)

//"This is an emphasized quote with an ellipsis at the end..."//  (OK)

<del>"This is a struck-through quote with an ellipsis at the end..."</del>  (OK)