`a+b=c`
$\to a=c-b$
$\to b=c-a$
a + b = c
⇒ a = c - b
⇒ b = c - a
Có ba trường hợp:
- Nếu a = c:
⇒ b = 0
- Nếu a < c:
⇒ b < c
- Nếu a > c:
lập hội thoại sử dụng can you can i
Giai nghĩa cụm từ lá lành dùm lá rách ( 4-5 câu thui nha )
❺. CORRECTION I. Choose the underlined word or phrase (marked A, B, C or D) in each sentence that needs correcting. 1. The children are playing boarding games, and their mother is arranging flowers. A B C D 2. One of his father's favourite hobbies is playing horse-riding, and he just practises it A B C twice a month. D 3. He started learning how to play the guitar on his elder brother. A B C D 4.Your favourite football match will begin at 3 p.m., so you should arrive there A B C soon to get a good seat. D 5. She will attend the judo class next month because she intends to have a long A B C vacation in Ho Chi Minh City. D 6. He loves to listen to classical music, but he spends a little time doing it. A B C D 7. She didn't enjoy the party very much because she didn't like music and A B C to dance there. D 8. She’s 18 and she’s France. She lives in a village near Toulouse. She studies A B C engineering at university. D 9. She has a short black hair and very dark eyes. She is intelligent and funny, but A B C sometimes she’s a bit sad too. D 10. She loves music and she likes writing songs. She can plays the guitar very well and A B C she has a beautiful voice. D II. There is one mistake in each sentence. Underline and correct the mistake. Sentences Correction 1. Nam is my classmates. He watches TV every night. 2. I think collecting stamps are interesting. 3. My dad cooks very good. He loves preparing meals for our family. 4. I enjoy to ride my bike to school. 5. We usually go in a small lake out of the city at weekends. 6. Do you still play football next year? 7. We like doing fishing because it is relaxing. 8. Do you think bird-watching interesting? 9. I think playing volleyball interest because it is a team game 10. In my opinion, more people played monopoly in the future.
Cho hình thoi abcd. Từ đỉnh góc từ B kẻ các đường vuông góc BE, BF đến AD,DC, cắt AC theo thứ tự ở M và N. CMR, tứ giác BM, DN là hình thoi
Cho tam giác ABC . Xác định điểm I thỏa mãn đẳng thức → → → 2IA-3IB=BC
cho tam giác ABC vuông Tại A. kẻ đường cao AH, vẽ hình chữ nhật AHBD và AHCE gọi P và Q là trung điểm của AB và AC 1) Chứng minh DAE thẳng hàng 2) Chứng minh PQ là trung trực của đoạn thẳng AH giúp vs :v
Suy nghĩ về câu chuyện : Nồi cơm Khổng Tử
Tình huống: _Chồng chết sớm,con cái ngoan ngoãn nhưng do nhà nghèo nên các con phải nghỉ học sớm,đi làm thuê để kiếm tiền.Không có tiền mua thuốc chữa bệnh cho mẹ bị đau bệnh nặng. *Em có nhận xét gì về gia đình trong tình huống trên?Họ đã thật sự hạnh phúc chưa?Hạnh phúc về mặt nào và không hạnh phúc về mặt nào?
❻. READING I. Read the text and choose the correct answer. If you enjoy cycling for pleasure, doing it in London can be a shock. There are not enough lanes especially for bikes, and making your way through the traffic can be very risky. But if you have great passion, cycling in London can be exciting, and it is an inexpensive way of keeping fit if you live there. Some cyclists don’t mind spending a lot of money on expensive bikes. However, if you just want a basic bike that is only for occasional use, there are many cheap choices. Several markets have cheap bikes on sale which may not be impressive to look at but should be satisfactory. You should buy a cycling helmet if you want to cycle in London. Wearing a cycling helmet is not compulsory in Britain, but it is a good idea to wear one for protection. 1. What is the main idea of the passage? A. Cycling helmets B. Cheap bicycles C. Bicycle markets D. Cycling in London 2. According to the passage, cycling in London is A. easy B. difficult C. tiring D. boring 3. The word “it” in line 3 refers to A. cycling B. passion C. excitement D. doing exercise 4. The difficulty of cycling in London is described in lines A. 2 B. 5 C. 5-6 D. 8-9 5. According to the passage, all the followings are true EXCEPT that A. It is compulsory to wear a helmet when cycling in Britain. B. Some bikes in London are cheap. C. There are not many lanes especially for bikes. D. Some cyclists don’t want to buy expensive bikes. II. Complete the text with the correct form of the verbs in the list. This is my favourite singer. He (1) a famous rock star. He (2) in America. He (3) all around the world and (4) in rock concerts. He (5) his songs and(6) his own video dips. In his free time, he (7) staying at home listening to his CDs. At weekends, he usually (8) to expensive restaurants with his friends. He also (9) a lot of books about strange things. I can’t wait to see him perform live. I (10) him so much. III. Choose the most suitable word for each space. What do you like doing best (1) your spare time? My cousin Paul likes going (2) in the country and (3) photos. Sometimes he (4) with his friends, and they (5) at the park or at the beach. They always (6) a good time. His brother Chris isn’t (7) on walking. He spends most of the (8) at home. 1. A. for B. when C. in D. at 2. A. for walks B. walks C. a walk D. to walk 3. A. making B. having C. taking D. doing 4. A. travels B. gets up C. sees D. goes out 5. A. enjoy B. have fun C. hobby D. go 6. A. have B. make C. do D. like 7. A. interested B. out C. decided D. keen 8. A. other B. time C. people D. money IV. Read the article and decide whether the statements are true (T) or false (F). After school Susan goes home to do her model-making. She loves making models. She started about a year ago. She needs about two weeks to make a model. Then she puts it on the shelf in her bedroom. She has about twenty models now. She thinks she will need to get another shelf soon. Last term she tried to start a club for model-making at school but the teachers and other children weren’t interested. She thinks she has a lot of fun anyway. 1. Susan makes models when she stays at school. 2. She has made her models for about one year. 3. It takes her two weeks to make two models. 4. She will need another shelf for her models soon. 5. Susan tried to start a club for model making and the teachers and other children were interested in it very much
Phân tích tác dụng của biện pháp tu từ trong câu Bố ơi! Bố chữa làm sao được lành lặn đôi bàn chân ấy...... đôi bàn chân dầm sương dãi nắng đã thành bệnh...... MONG MỌI NGƯỜI GIÚP MK VS nhanh và đúng nhất mk sẽ chọn ctlhn Mk cảm ơn trc
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