Bài 1 : Sửa lỗi sai:

1. Mary with her children are sitting around the table

2. A large number of Vietnamese student know English

3. It is very difficult for us to preventing forest fires during the drought

4. Would you mind give me a hand, I have a lot of things to do?

5. The little boy is very interested in football, but he actually not good for playing

6. Paula has given up to smoke for 5 months

7. He used to working hard when he was young, but he is old now.

8. Peter is used to doing morning exercise every day , didn't he ?

9. This morning I met Mary, that I hadn't seen for ages

10. They have done the homework since 2 hours

11. How long does your mother go to market?

12. Marie Curie's dream was to becom a scientific

13. They were hungry, so they suggested to have dinner early

14. They agree with waiting for me if I was late

15. I hate the way you never look at me whenever you speak to me

16. The purpose of volunteer work is to help poor people how improving their life

Bài 1: Sửa lỗi sai:

1. She decided to short and skirt.

2. After driving for 20 miles, he suddenly realized that he has been driving in the wrong direction

3. The best way for children to learn science is to perform experiments himself

4. Would you mind not smoke here?

5. Last night, I was stopping by the police as I was driving home

6. If T have been hungry, I would have eaten something

7. Neither you nor he have to leave for New York immediately

8. Many folk songs have been wrote about farmers and country life

9.Neither his parents nor his teacher are satisfied with he result

10. He had smoked too a lot of cigarettes so he died of cancer

11. I learnt English since I was 10 years old

12. We will go to see you when we will go to Hanoi next week

13. As soon as I had finished the report, I'll give you a call

Bài 1 : Sửa lỗi sai:

1. Bill went to class late, that was unusual for him.

2. My close friend, that I've lost touch with for 3 years, has just returned from India.

3. Human beings whom live longer than one hundred years are a rarity.

4. The last person leaving the room must turn off the light.

5. He's the man that his novel won the Nobel Prize last year

6. I don't know the reason what he wanted to leave his home country.

7. She always wears clothes are made by a famous fashion designer.

8. Hawii, which is the part of a group of islands,that has active volcanoes.

9. My father, that has a special craze for cars, has just bought another sport car

10.Marilyn Monroe, who a famous actress,died of drug overdose

11. I have my teeth checking by the dentist.

12.These pills should be take every four hours

13. The letter should been delivered in the afternoon

14. The mail has sent to the wrong address

15. They were questtioning by the police

16. Unless we leave a bowl of water under the sun, it will evaporate

17. English is said to speak all over the world

18.They have got married for twenty years old

19. There used to many big trees here

20. She is afraid of living on her in a big city

Đốt cháy hoàn toàn hỗn hợp khi gồm CO và H₂ cần 4,48 lít O₂ đktc. Sau phản ứng thu được 3,36 lít O₂ đktc

a, Tính % theo thể tích

b. Tính khối lượng của hỗn hợp ban đầu

Bài 1: Đốt cháy hoàn toàn hỗn hợp khí gòm CO và H₂ cần 4,48 lít O₂ đktc. Sau phản ứng thu được 3,36 lít O₂ đktc. Tính % theo thể tích và khối lượng của hỗn hợp ban đầu

Bài 2 :Đốt cháy hoàn toàn 24 kg than đá chứ 0,5%S và 1,5% tạp chất khác ko cháy. Tính V_O2 tham gia phản ừn đktc và khối lượng hỗn hợp CO₂, SO₂ thu được sau phản ứng

Tìm một số đoạn văn tự sự có sử dụng yếu tố miêu tả và biểu cảm trong văn bản Trong Lòng Mẹ ( Nguyên Hồng ) . Phân tích giá trị của các yếu tố đó

em hãy kể về món quà sinh nhật của bạn bè gây cho em ấn tượng sâu sắc nhất về tình bạn

mk cần gấp trog tối nay ạ