1. Tế bào ở những bộ phận nào có khả năng phân chia? Quá trình phân bào diễn ra như thế nào? 2. Tại sao phải thu hoạch các cây có rễ củ trước khi chúng ra hoa?

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Mn giúp em vs ạ em cần gấp lắm cảm ơn rất nhiều ạ : Rewrite the following sentences using the impersonal passive. 1. People know that he is armed. - It ……………………………………………………………………….. - He ……………………………………………………………………….. 2. It is believed that the man was killed by the terrorist. - The man ……………………………………………………………………….. 3. People think that the company is planning a new advertising campaign. - It ………………………………………………………………………………….. - The company……………………………………………………………………….. 4. It was reported that the President had suffered a heart attack. - The President ……………………………………………………………………….. 5. It is said that the man was driving at 110 miles an hour. - The man ……………………………………………………………………….. 6. People know that the expedition reached the South Pole in May. - It …………………………………………………………………………………….. - The expedition ……………………………………………………………………….. 7. It is said that there is a secret tunnel between them. - There ……………………………………………………………………….. 8. People consider that she was the best singer thar Australia has ever produced. - It ……………………………………………………………………………….. - She …………………………………………………………………………….. 9. It is expected that the weather will be good tomorrow. - The weather …………………………………………………………………….. 10. A lot of people believed that the Prime Minister and his wife had separated. - It ……………………………………………………………………………….. - The Prime Minister and his wife………………………………………………… 11. Someone reported that the situation was under control. - The situation……………………………………………………………………………… 12. It is said that she works 16 hours a day. - She…………………………………………………………………………………………