Write an essay: air conditioner is more useful than fans. Do you agree or disagree?

IV. There is one mistake in each of the following sentences. Find and correct it. 31. Her grandmother is complaining so she's always dumping her school things in the floor. 32. Water from power stations may cause water in rivers and lakes hotter. 33. We've decided to cancel our picnic because of it's forecast to rain tomorrow. 34. Radiation may result to childhood cancer. 35. He worked in a noisy environment for a long time, because his hearing became worse. 36. Researchers haven't found out what has led in the pollution of the river.

III. Match a sentence in Column A with an appropriate sentence in Column B. Column A Column B 1. I was very fit when I was young . A. He used to smoke a lot. 2. The teachers at my school were kind. B. He used to play for the local team. 3. My brother’s room was so messy . C. It used to follow me everywhere. 4. I had a dog when I was a kid . D. We used to go everywhere by bus. 5. My family had some lovely holidays. E. We used to freeze on winter mornings. 6. When I was young, we didn’t have a car. F. He used to fly Airbus. 7. And we didn’t have central heating. G. He never used to tidy it at all. 8. My uncle was a pilot for Vietnam Airlines. H. I used to do a lot of exercises. 9. My father was weak. I. They used to help pupils. 10. My brother was a soccer player. J. We used to go camping all over the country.

tìm x biết (x-29)-(17-38)=-9 giúp mình với

Cho tam giác ABC có AB=AC gọi M là trung điểm của BC chứng minh rằng AMB=AMC AM là tia phân giác AM vuông góc với BC Vẽ At là tia phân giác góc ngoài ở đỉnh a chứng minh rằng At song song với BC

Giúp mình với nhé . Cảm ơn nhiều

Phân biệt kiểu bay vỗ cánh và bay lượn?

Cho đường tròn (O ; R ) với dây AB < 2R cố định . Gọi C là điểm thuộc cung lớn AB sao cho tam giác ABC nhọn , M và N lần lượt là điểm chính giữa cung nhỏ AB và cung nhỏ AC . Gọi I là giao điểm của BN và CM . Dây MN cắt AB và AC lần lượt tại H và K a) CM tứ giác BHMK nội tiếp b) NI . NB = NH . NM Giúp mình bài này với ._.

ca dao là gì ................................

Giúp mình với nhé . Cảm ơn nhiều