Acupuncture is used for treating many ailments without any medicine.

Câu 2

\((1) MnO_2 + 4HCl \to MnCl_2 + Cl_2 + 2H_2O\\ (2) Cl_2 + H_2 \xrightarrow{as} 2HCl\\ (3) 3Cl_2 + 2Fe \xrightarrow{t^o} 2FeCl_3\\ (4) 2FeCl_3 + Fe \to 3FeCl_2\\ (5) 2NaOH + Cl_2 \to NaCl + NaClO + H_2O\)

\((1) 4Al + 3O_2 \xrightarrow{t^o} 2Al_2O_3\\ (2) 2Fe + 3Cl_2 \xrightarrow{t^o} 2FeCl_3\\ (3) C + O_2 \xrightarrow{t^o} CO_2\\ (4) 2KMnO_4 \xrightarrow{t^o} K_2MnO_4 + MnO_2 + O_2\\ (5) 4P + 5O_2 \xrightarrow{t^o} 2P_2O_5\\ (6) 2KClO_3 \xrightarrow{t^o} 2KCl + 3O_2\\ (7) Fe + H_2SO_4 \to FeSO_4 + H_2\\ (8) Cu + 2H_2SO_4 \to CuSO_4 + SO_2 + 2H_2O\\ (9) 2Fe + 6H_2SO_4 \to Fe_2(SO_4)_3 + 3SO_2 + 6H_2O\\ (10) 2Al + 6H_2SO_4 \to Al_2(SO_4)_3 + 3SO_2 + 6H_2O\)

In the age of technology, laptop is used widely. The laptop brings us a lot of benefits for our live. it is very versatile as it can do many things. firstly, it is portable. therefore, people can take it everywhere. secondly, it is economical so everyone don't have to spend too much money to buy it. besides, the laptop is a mean of entertainment. we can use it to listen to music, to chat with friends, to make video call with parents, to play games, and so on. last but not least, we can use laptop for studying. for example, the laptop can be used for researching topics on the Web or typing the assignment as well. In summary, laptop is definitely one of the greatest inventions in the world as well as the best thing in our society.

P/s: Mình nghĩ nói ngắn quá sẽ không có điểm cao lắm đâu, không cần nói quá dài hoặc quá ngắn. Chỉ cần đầy đủ ý trong bài là ok. Với lại khi nói bạn nhớ phải tự tin lên nha. FIGHTING!!!!

1.Why(you/not take).............didn't you take......................part in the picnic last Sunday?

2. Where (your teacher/be ).....is your teacher..............?

He (explain)........explain........a new lesson in that class

3. We cant't go out now because it(rain)...is raining..........

4. This is the best wine i have ever (drink).....drunk............

1. Why ( you/ not take) .......don't you take...........part in the picnic last Sunday?

2. Where ( your teacher/ be).....is your teacher ...............?

- He (explain)......is explaining................a new lesson in that class.

3. We can't go out now because it (rain)....... is raining........... .

4. This is the best wine I ever ( drink).......... have ever drunk..............

1. didn't you take

2. is your teacher

    is explaining

3. is raining

4. have ever drunk

Có thể câu này bị sai ngôi nha! Vì "each of them" là "mỗi người trong số họ", nhưng đây là truyện dân gian, thế nên không thể dùng từ chỉ người được!

Nếu mà giáo viên của bạn vẫn bảo đúng thì có lẽ là sắp xếp như sau: I love folk tales because each of them gives me a lesson in life.

Mình cũng không giỏi Tiếng Anh lắm nhưng hi vọng có thể giúp được bạn ^^

1.Nowadays, developing society should lead to many types of environmental pollution such as: land pollution, water pollution, thermal pollution, ...ect. Among them, noise pollution greatly affects people and animals life. Noise pollutions happen when the sound's loudness is more than 70 dBs. Sound of vehicles is the cause of noise pollution or turning on the music too loudly also affects the hearing of people around, especially in bars, concerts, or karaoke bars. If you experience noise pollution for a long time, you can have headache, high blood pressure and hearing loss, ect. Some tips to reduce noise pollution. For examples, wearing earplugs when you go to concerts or other loud events. Listening to music through headphones or headsets at safe levels. I hope noise pollution will decrease in the future.

The person I really like is my close friend, Sarah. We first met during our freshman year of college in a literature class. Sarah has a warm and compassionate personality. She is always there to listen and offer support to others. I really like her because she is kind-hearted, empathetic, and has an uplifting spirit that brings positivity to every situation.

mình làm những bài bn chưa lm nhé

9B

10A

bài 2

have repainted

bàii 3

ride - walikking

swimming

watch

2 have repainted

4 have done 

8 have stepped

9 have you ever played

7) 1 riding -walking

2 swimming

3 watching

8)

2 my mother doesn't like listening to music

5 doing more exercises makes you healthier

còn lại ok nha

chịu ???????????????????