Hoàn thành

Vô trang cá nhân của mình ấn vô thống kê hỏi đáp nha

       Christmas is a magical and enchanting time of year. It is a joyous and festive occasion filled with love, happiness, and excitement. The air is filled with a warm and cozy atmosphere, as families come together to celebrate. The beautifully decorated Christmas tree sparkles with twinkling lights and shimmering ornaments. Delicious and indulgent feasts are prepared, filling the air with mouth-watering aromas. Generosity and kindness abound as people exchange thoughtful and heartfelt gifts. The joyful laughter of children fills the air, accompanied by the melodic sounds of Christmas carols. The winter scenery is breathtaking, with glistening snowflakes and frosty landscapes. The spirit of Christmas is truly magical, bringing warmth, joy, and togetherness to all.

    Christmas is a magical and enchanting time of year. It is a joyous and festive occasion filled with love, happiness, and excitement. The air is filled with a warm and cozy atmosphere, as families come together to celebrate. The beautifully decorated Christmas tree sparkles with twinkling lights and shimmering ornaments. Delicious and indulgent feasts are prepared, filling the air with mouth-watering aromas. Generosity and kindness abound as people exchange thoughtful and heartfelt gifts. The joyful laughter of children fills the air, accompanied by the melodic sounds of Christmas carols. The winter scenery is breathtaking, with glistening snowflakes and frosty landscapes. The spirit of Christmas is truly magical, bringing warmth, joy, and togetherness to all.

1 My sister has learned English for 5 years

2 A supermarket was built near the airport last year

3 I spent three hours cleaning the house yesterday

6 The wall built three weeks ago fell down

7 Unless you leave me alone, I will call the police

8 The suspects are being followed by the police 

10 Nobody in this team is as good at playing football as Tom

1 I asked her if she had met my friend

2 He asked me if I could swim

3 Nam told Lan he was writing to her friend that night

4 They told him they gave him a pen

5 Peter told Mary her father had just come to his house

6 Mr Hiep told the pupils he often gave them good advice

7 She told him she had met him at the beach the day before

8 Nam asked Hong if she had been tired the day before

1 She asked Nam where he was going

2 They asked Hoa what her friend had read

9 I asked Peter why he went to her house

10 Lan asked Huong when she would visit her friend?

11 He asked her what her name was

12 Yom asked Mart where she had met his sister

13 Peter asked Daisy if she was writing to his brother

14 Peter told Mary to bring him her pen

15 She told him not to tell her brother about it

16 Mai told Huong to go to her friend's house with her

17 Hong told Nam to try his best

18 He told me not to go out alone at night

19 He asked me if I visited his friend often

20 She asked me if I liked her

21 He asked Hoa what had made her sad

22 Mr Pike asked Mary where she often went

23 She said she would go to visit Nha Trang

24 Mary told Tom she had seen his friend going with her friend

25 I said I would go to visit her

26 Lan told me she gad read my book ten days before

27 Hoa told Hung she had been writing to him

28 She asked him why he hadn't gone to the party the day before

29 Peter asked Daisy where they were going to meet each other the next Sunday

30 he asked Hoa of she had met her friend

1. I asked her if she had met my friend.

2. He asked me if I could him.

3. Nam said to Lan that he was writing to her friend that night.

4. They offered to give him a pen.

5. Peter said to Mary that her father had just come to his house.

6. Mr Hiep said to the pupils that he often gave them good advice.

7. She said to him that she had met him the day before.

8. Nam asked Hong if she had been tired the day before.

1. She asked Nam where he was going.

2. They asked Hoa what her friend had read.

9. They asked Peter why he didn't go to her house.

10. Lan asked Huong when she would visit her friend.

11. He asked her what her name was.

12. Tom asked Mary where she had met his siter.

13. Peter asked Daisy if she was writing to his brother.

14. Peter asked Mary to bring him her pen.

15. She asked him not to tell her mother about it.

16. Mai asked Huong to go to her friend's house with her.

17. Huong encouraged Nam to try his best.

18. He warned her not to go out alone at night.

19. He asked me if I visited his friend often.

20. She asked me if I liked her.

Gọi độ dài quãng đường AB là \(x\) ( km ; x > 0 )

Thì thời gian người đó đi từ A đến B là \(\dfrac{x}{30}\left(giờ\right)\)

Thời gian người đó quay về A là \(\dfrac{x}{20}\left(giờ\right)\)

Vì tổng thời gian lúc đi , lúc về và làm ở B hết 1 giờ là 5 giờ nên ta có phương trình : \(\dfrac{x}{30}+\dfrac{x}{20}+1=5\)

\(\Leftrightarrow\dfrac{x}{30}+\dfrac{x}{20}=4\)

\(\Leftrightarrow2x+3x=240\)

\(5x=240\)\(\Leftrightarrow x=48\left(nhận\right)\)

Vậy quãng đường AB dài \(48km\)