Viết lại câu sau mà không thay đổi nghĩa ban đầu 1. It's not a good idea that children eat a lot of sweets => Children... 2. It's necessary for us to leave the hotel room before 12 o'clock => We... 3. It's not good idea when students copy other student's work => Students shouldn't... 4. It's important that I come home after school => I must...

1. Children mustn't eat a lot of sweets

2. We must leave the hotel room before 12 o'clock

3. Students shouldn't copy other student's work

4. I must come home after school

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Must + V: Phải làm gì

Mustn't + V: Không được làm gì

1. It's not a good idea that children eat a lot of sweets

⇒ Children shouldn't eat a lot of sweet

⇒ shouldn't + Vo: không nên

2. It's necessary for us to leave the hotel room before 12 o'clock

⇒ We must leave the hotel room before 12 o'clock

⇒ must + Vo: phải

3. It's not good idea when students copy other student's work

⇒ Students shouldn't copy other students' work

⇒ shouldn't + Vo: không nên

4. It's important that I come home after school

⇒ I must come home after school

⇒ must + Vo: phải

$\textit{#thienbinhvuive}$