AP Style: T, U, V

The correct answer is "They're." This is a contraction of "they are" and is used to indicate that a group of people will be going to the beach this weekend.

The correct answer is "their" because it is referring to the possession of a house belonging to someone. "They're" is a contraction of "they are" and does not indicate possession. "There" is used to refer to a location and is not appropriate in this context.

UNESCO stands for United Nations Educational, Scientific and Cultural Organization. It is a specialized agency of the United Nations that aims to promote peace, sustainable development, and intercultural dialogue through education, science, culture, and communication. The organization works to protect and preserve cultural heritage, promote access to quality education, support scientific research, and foster cultural diversity and understanding among nations.

UNICEF stands for United Nations Children's Fund. UNICEF is an international organization that works towards the well-being and rights of children worldwide. They provide assistance in areas such as healthcare, nutrition, education, and emergency relief. The organization aims to protect children's rights and ensure their survival, development, and protection.

The correct answer is "The team, which finished last a year ago, is in first place." This is because "which" is used to provide additional information about the subject, without changing the meaning of the sentence. In this case, the phrase "finished last a year ago" is not essential to the meaning of the sentence, but rather provides extra information about the team. Therefore, "which" is the appropriate relative pronoun to use in this context.

The word "president" should not be capitalized unless it is being used as a proper noun, such as when referring to a specific president by name. In this case, since "president" is not capitalized, it is being used as a common noun to refer to the leader of a country. Therefore, the correct answer is "The president gave a speech this morning."

The correct answer is "there". In this context, "there" is used to refer to a specific place or situation. The phrase "That is what it is there for" implies that something has a specific purpose or function.