8. Please don’t smoke in the kitchen.
⇒ I’d rather you didn’t smoke in the kitchen.

Explanation: "I’d rather" is followed by a subject + past simple to express a preference for someone not doing something.
Dịch: Tôi mong bạn đừng hút thuốc trong bếp.

9. Sue spends 3 hours a day practicing English with her friends.
⇒ It takes Sue 3 hours a day to practice English with her friends.

Explanation: "It takes + someone + time + to do something" is used to describe the amount of time a person spends on an activity.
Dịch: Sue mất 3 giờ mỗi ngày để luyện tập tiếng Anh với bạn bè.

10. We take our umbrellas because it is raining heavily.
⇒ It is raining heavily, so we take our umbrellas.

Explanation: The sentence is rephrased to focus on the reason (raining heavily) for taking the umbrellas, maintaining the cause-and-effect relationship.
Dịch: Trời đang mưa to, vì vậy chúng tôi mang theo ô.