Question 1.<!--TgQPHd|[]--> "I will visit my grandma this Saturday," Ann said.<!--TgQPHd|[]-->
- D. Ann said that she would visit her grandma that Saturday.<!--TgQPHd|[]--><!--TgQPHd|[]-->
- Reasoning:<!--TgQPHd|[]--> When converting to reported speech, "will" changes to would<!--TgQPHd|[]-->, "my" changes to her<!--TgQPHd|[]-->, and "this" changes to that<!--TgQPHd|[]-->.<!--TgQPHd|[]--><!--TgQPHd|[]-->
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Question 2.<!--TgQPHd|[]--> John is very sad because he fails the final exam.<!--TgQPHd|[]-->
- C. John fails the final exam, so he is very sad.<!--TgQPHd|[]--><!--TgQPHd|[]-->
- Reasoning:<!--TgQPHd|[]--> "Because" indicates a cause-effect relationship. "So" correctly links the cause (failing the exam) to the effect (being sad).<!--TgQPHd|[]--><!--TgQPHd|[]-->
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Question 3.<!--TgQPHd|[]--> "How many stars are there in our galaxy?" Tom asked.<!--TgQPHd|[]-->
- . Tom asked how many stars there were in our galaxy.<!--TgQPHd|[]--><!--TgQPHd|[]-->
- Reasoning:<!--TgQPHd|[]--> In reported questions, the word order becomes a statement (subject + verb), and the tense shifts from present ("are") to past (were<!--TgQPHd|[]-->).<!--TgQPHd|[]--><!--TgQPHd|[]-->
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Question 4.<!--TgQPHd|[]--> "Where did you go last night?" the Mom talked to the son.<!--TgQPHd|[]-->
- . The mom asked the son where he had gone the previous night.<!--TgQPHd|[]--><!--TgQPHd|[]-->
- Reasoning:<!--TgQPHd|[]--> For a question, "asked" is more appropriate than "talked to." The past simple ("did... go") shifts to past perfect (had gone<!--TgQPHd|[]-->), and "last night" becomes the previous night<!--TgQPHd|[]-->.