15. I have not seen him since last week 16. I don’t remember her name 17. We shouldn’t make the children work hard 18. How was the problem solved? 19. John used to visit Mr. Cole at weekends 20. The director wanted me to finish the report sooner than usual 21. My salary is going to be increased 22. Nothing had been moved until the police came 23. They elected Mr. Pike president of the club 24. Where do you put the fridge? giúp mình với

làm hộ em 4 cái câu đó ạ ! nhanh giúp em ! 6h5p em phải nộp rồi ạ

5. We must finish those letters by 5 o’clock 6. The letter will be delivered next week 7. This road isn’t used very often 8. Someone had attacked and robbed him in the street 9. The room is going to be painted next week 10. They had to postpone the meeting because of my illness 11. The rice-fields will have been ploughed by the end of the month 12. These engines used to be started by hand 13. Were you taught how to apply this theory by your teacher? giúp mình với

2/1.3+2/3.5+2/5.7+...2/(2n+1).(2n+3)

Giúp e với ah hứa vote 5* và cảm ơn (tlhn nếu đc) 🥺🥺

vẽ Tiểu Phong trong phim đông cung hoặc Lisa Blackpink nl: cho hỏi làm sao người ta biết là buff

Calli : "Em ghét tui à'' yc : tông màu tối . tradi chụp sáng , xấu = xóa NL: Tâm trang đang buồn 😔😔😔

50d ạ giúp với hứa vote 5sao và ctlhn ạ CHỈ LÀM CÂU B,C Ạ

1, a,<1-1/4><1-1/9><1-1/16><1-1/25>....................<1-1/100> b,2/3+2/15+2/21 // 3/4+3/20+3/28 nhanhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Cho phân thức: B= x^2-x+2/x-3 với x khác 0 a. Tìm x để B < 0 b. Tìm x thuộc Z để B thuộc Z