giải phương trình: tối em học òi

Giải thích hộ mình tại sao lại chọn phương án đó nhé

V. Supply an appropriate preposition if necessary 1. Women today no longer accept such unequal treatment. 2. What do you usually have breakfast? 3. That morning breakfast, I told my parents I was getting married. 4. “What are you doing Easter?” “I haven’t decided yet.” 5. The exhibition opens in Berlin the end of May. 6. It’s Ann’s birthday some time the middle of May, I think. 7. I will see you Christmas to celebrate the birth of Jesus. Keep it in mind. 8. his stay in Thailand, he visited many interesting places. 9. We often go for a walk the weekend. (at/ on weekends) 10. Do you get paid the beginning of the month or the last day? 10. Do you get paid the beginning of the month or the last day?

help me!!!!!!!!!!! Exercise 3: 1. A. easy B. meaning C. bread D. heat 2. A. family B. try C. happy D. lovely 3. A. smile B. life C. beautiful D. like 4. A. small B. tall C. favorite D. fall 5. A. black B. apple C. gram D. fall 6. A. dozen B. bottle C. soccer D. orange 7. A. round B. shoulder C. mouth D. household 8. A. money B. ton C. month D. shop 9. A. chest B. lemonade C. packet D. tent 10. A. champagne B. chaos C. scheme D. chemist 11. A. islander B. alive C. vacancy D. habitat 12. A. stone B. top C. pocket D. modern 13. A. volunteer B. trust C. fuss D. judge 14. A. gossip B. gentle C. gamble D. garage 15. A. daunt B. astronaut C. vaulting D. aunt 16. A. clear B. treasure C. spread D. dread 17. A. about B. shout C. wounded D. count 18. A. none B. dozen C. youngster D. home 19. A. crucial B. partial C. material D. financial 20. A. major B. native C. sailor D. applicant

Cho 9,6 gam bột kim loại N (hóa trị không đổi) vào 250 ml dung dịch gồm Fe(NO3)2 0,6M và Cu(NO3)2 0,2M rổi khuấy cho đến khi các phản ứng xảy ra hoàn toàn, thu được dung dịch X và 16,4 gam chất rắn Y. a)Xác định kim loại N. b)Tính nồng dộ mol/l của chất tan trong X, coi V dung dịch không thay đổi trong toàn quá trình.

Change the following sentences from direct to reported speech

Control w? Control T? Control + shift + T? Alt + F4? F5? Control V? Control C? Control z?

Các bạn giúp mình bài 18 này đc ko ạ :(( Mình cảm ơn nhiều ạ!!

Tenses : 14. Do you need ………( have) time to finish your home work? 15. How long ………you (live) in Bac Giang ? 16. They ………….(not work ) yesterday. 17. Unless You ……….(work) hard , you……… ( fail) the exam. 18. There ……….(be) a lot of milk in the fridge. 19. You should avoid ……….(go) out at night. 20. What do you want ………..(be) in the future ? 21. When he ……….(meet) her, he………( give) her your letter tomorrow. 22. Who …………..you (wait)……………for? 23. I……………( help) her as soon as she………………. (need). 24. Would you mind ……………….( move ) this chair ? 25. I suggest ……………..( go) to school on foot.

Tenses : 1. If she ……….(be) here , she ………….(help) me .She is away now. 2. We fancy………….( climb) the mountain. 3. Would you like …….(have) a drink? 4. This car…………(buy) since last week. 5. She is interested in………….( collect) stamp. 6. They ………….( publish) this book for 5 months. 7. ………You ( visit)……….your grandfather last week? 8. She is fond of………( hang) out with her friends. 9. Where are the children? They …………(play) in the garden. 10. What ……….(happen) if there ……….(not be) water? 11. When ……Mr Hung ( buy)……….his new car? Last year. 12. A new bridge ……….(build) here next year. 13. Some one …………( steal) my bike .I am looking for it now.