In the given search results, the content is focused on grammar rules and sentence structures, particularly those involving relative pronouns and participles. The search keywords are related to completing sentences with 'that'. Here's a summary of the search results:

1. The first result is a grammar practice exercise focusing on the present perfect tense and its usage in sentences.
2. The second result is a grammar question from a 3rd edition of "501 Grammar & Writing Questions" regarding the use of relative pronouns.
3. The third result is an article discussing the use of participles and gerunds in sentences.
4. The fourth result is a grammar exercise for academic writing, where the user is asked to identify where to make a new paragraph and what heading to give each one.
5. The fifth result is a grammar practice exercise focusing on sentence types and punctuation.
6. The sixth result is an article about commonly confused words in English.
7. The seventh result is a LearnEnglish resource explaining non-defining relative clauses.
8. The eighth result is an OSU-OKC resource explaining sentence fragments.
9. The ninth result is an article about the implementation of the 2017 Massachusetts Curriculum Framework for English Language Arts and Literacy.
10. The tenth result is a punctuation exercise focusing on the use of commas in sentences.

If you have any specific questions related to these search results or if you'd like more information on any of the topics, please let me know.
Based on the search results, here is a summary of the information provided:

1. An eco-friendly car is a vehicle that causes less air pollution.
2. The tree I planted when Joseph was born is dead.

The search results provided a mix of unrelated topics, including articles about sepsis, religious discrimination, sustainable development, and tech megalopolis transformation. None of the search results directly address the questions or provide relevant information about eco-friendly cars or dead trees. If you have any other questions or need assistance with a different topic, please let me know.