To determine which statements are true regarding the evolution of the World Wide Web, let us examine each option:

1. Statement A: "Web 2.0 is the 'participative social web'"

Web 2.0 marks the transition from static web pages to dynamic or user-generated content and the growth of social media. It emphasizes user interaction and collaboration. Hence, the statement is true.

1. Statement B: "Web 1.0 is the 'read-only web'"

Web 1.0 refers to the early stage of the World Wide Web characterized by static pages where users could only view information without interacting. This justifies the term "read-only web." Thus, this statement is also true.

1. Statement C: "Three main applications of Web 2.0 are YouTube, Wikis, and Blogs"

Web 2.0 applications are known for enabling user participation, collaboration, and sharing. Platforms like YouTube (video sharing), Wikis (collaborative content creation), and Blogs (personal publishing) are classic examples. Therefore, this statement is correct.

1. Statement D: "Web 3.0 is the 'read, write, execute web'"

Web 3.0 is often described as the Semantic Web, which aims to make data readable by machines and facilitate intelligent interactions. The term "read, write, execute" reflects its goal of integrating these capabilities. This statement is thus true.

After evaluating all statements, all four (A, B, C, and D) are accurate descriptions of the corresponding web evolution stages. Therefore, the correct answer is:

A, B, C, and D