1 người đứng cách nơi xảy ra sấm sét 5,1km. Hỏi sau bao lâu người đó nghe được tiếng sấm, bao lâu nhìn thấy tia chớp. Biết ánh sáng truyền đi vs vận tốc 300000km/giây, âm thanh truyền đi với vận tốc 340km/giây

Mng ơi chỉ em câu 5c đi ạ . Em cảm ơn nhiều

49. He last paid taxes in 1970. He hasn’t _____________________________________________________ 50. I last ate meat 5 years ago. I haven’t _______________________________________________ 51. It's 3 months since since the windows were cleaned. The windows haven’t _________________________________________ 52. It's years since I took photographs. I haven’t __________________________________________ 53. I last watched TV on new years's day. I haven’t _____________________________________ 54. It's 3 months since he wrote to me. He hasn’t ___________________________________________ 55. The last time I was aboard was in the summer of 1978. I haven’t ______________________________________________ 56. It's ten years since that house was lived in. That house ____________________________________________ 57. I haven't seen him for 2 months. I last ________________________________________________ 58. I haven't been to a concert for over a year. The last time ____________________________

Giúp mình vs nha các bạn 🥺🥺🥺🥺🥺

Trong quá trình tiến hóa , tại sao người tinh khôn có sự thay đổi về hình dáng với người tối cổ ?

Giải thích luôn ạ. Không spam. Nhanh cho ctlhn

Mai em ktra rồi ạ giải giúp em với làm ơn ạ , xin cảm ơn nhiều! ( hình 1 ạ)

vẽ giúp tui chibi cầm bông hoa tím + full màu nhé ngoài lề : do you know mod quangcuong347 ? what city does he live in ? phải tl nhé :))

Đển guyên dùng dán đồ chơi Thêm huyền lại ở tận nơi mái nhà Thêm nặn găn ngọt lắm nha Còn thêm thanh sắc để bà cắt may" Từ để nguyên là từ gì?

39. I haven’t taken a bath since Monday. It is____________________________________________________ 40. It's 2 years since I had a punture. I have ______________________________________________ 41. It's 2 months since he earned any money. He has ______________________________________________ 42. He last shaved the day before yesterday. He hasn’t ______________________________________________ 43. I last drank champagne at my brother's wedding. I haven’t ______________________________________________ 44. It's 2 years since I was last in Rome. I haven’t ______________________________________________ 45. I saw Tom last on his wedding day. I haven’t ______________________________________________________ 46. I last ate raw fish when I was in Japan. I haven’t ____________________________________________ 47. It's years since Mary last spoke French. Mary hasn’t _________________________________________________ 48. It's ten weeks since since I last had a good night sleep. I haven’t ______________________________