Read the passage and choose the answer to each of the following question

11. February/the/short/month/of the year. 12. Jonh/bad/student/in the class. 13. Ho Chi Minh city/big/ city/Vietnam. 14. Hoa/beautiful/girl/village. 15. This is/interesting/story l've ever read.

Tìm x biết a,(2x+3)^2 -(2x+1)(2x-1)=22 b,(4x+3)(4x-3)-(4x-5)=46

Giải phương trình: x^2−4|x|−5=0

Em muốn làm 1 bài văn đề là tưởng tượng và gặp gỡ người lính trong bài thơ đồng chí của chính hữu

Giúp mình b3 với ạ Mình đang cần gấp

Choose the best option that fits each gap in the following passage

Bài tập tính A = 20 + 21+.........+60 B=1+3+5+........+109 C=1+2+........+130 D+2+4+6....+100

Finish each of the following sentences in such a way that it is as similar as possible in meaning to the ginal sentence: 1. I can't cook as well as my mother can. My mother 2. Peter speaks English better than Tom. - Tom doesn't 3. Mum doesn't speak English as well as Dad. Dad speaks .. 4. Lan is a better cook than Hoa. - Hoa can't 5. Apples are usually cheaper than oranges. Apples are not 6. Pat is the tallest girl in her class. - No one 7. Barbara plays tennis better than Kate. Kate doesn't. 8. She knows a lot more about it than I do. I don't know 9. No restaurant in the city is better than that one. - That restaurant is 10. Ha doesn't play chess as well as Lan. - Lan plays... 11. Janet is the fastest runner. - No one can ........ 12. Tommy' brother isn't as tall as he is. ........

cho cát, sắt và đồng trộn lại vào nhau làm sao để tách chúng ra giúp e nhanh vs ạ