Năm nay mk cuối cấp 2 rồi, mình bị mất gốc tiếng anh nhưng ko bt học lại từ đâu và học thế nào, bn nào có cách gì ko giúp mk với ạ, mk cảm ơn nhiều

Anh chị ơi giải hộ em bài này với ạ

51. I have never been to the ballet before. ⇨ It is ______________________________________________________________ 52. John and Mary moved to Edinburgh twenty years ago. ⇨ It is ______________________________________________________________ 53. The police started looking for him two months ago. ⇨ For two months now the ______________________________________________ 54. I have never seen a dirtier-looking dog. ⇨ This is ____________________________________________________________ 55. Mary rang hours and hours ago. ⇨ It it hours ___________________________________________________________ 56. It is ages since Alan visited his parents. ⇨ Alan _______________________________________________________________ 57. John has not had his hair cut for over six months. ⇨ It is ________________________________________________________________ 58. I has never seen such a beautiful building. ⇨ It's the most _________________________________________________________ 59. I have never read such a romantic story. ⇨ This is the most ______________________________________________________ 60. They had never had such a cold winter. ⇨ It was the ___________________________________________________________ 61. You will never meet anyone more dangerous than Mrs Jones. ⇨ Mr. Jones is the most __________________________________________________ 62. Man has never had such efficient servants as computer. ⇨ Computer is the most __________________________________________________ 63. I haven't played football since 2000. ⇨ The last time _________________________________________________________ 64. I haven't been to HCM city for 2 years. ⇨ The last time _________________________________________________________ 65. I 've never met such a famous person before. ⇨ It is the first time ______________________________________________________ 66. She hasn't seen that boy here before. ⇨ It is the first __________________________________________________________ 67. She hasn't written to us since last year. ⇨ The last time _________________________________________________________ 68. She started to learn English 8 years ago. ⇨ It’s _________________________________________________________________ 69. He hasn't laughed so much for ages. ⇨ It’s _________________________________________________________________ 70. I haven't enjoyed myself so much for years. ⇨ It’s _________________________________________________________________ 71. The telephone rang for hours. ⇨ It’s hours ____________________________________________________________ 72. I haven't seen him for ages. ⇨ It’s _________________________________________________________________ 73. I have learned English for four years. ⇨ We started ___________________________________________________________ 74. Ly’s father started to stop smoking last year. ⇨ Ly’s father ___________________________________________________________ 75. The editor hasn’t written to Mai for a month. ⇨ The editor last _________________________________________________________ Giúp em với em sẽ tặng ctlhn em cảm ơn

Giải phương trình lượng giác sau : tan3x = tanx

giúp mình với các bạn ơi @@@@@@@

Làm hộ mình bài này Nguyên tử của nguyên tố x có tổng số hạt là 60 trong đó hạt mang điện nhiều hơn hạt không mang điện là 20 hạt có trong nguyên tử x xác định x là nguyên tử có nguyên tố hóa học

Giúp mk với chỉ có mỗi 1 câu trắc nghiệm thôi :<

Giúp mik vs m.n ơi. Năn nỉ lun á

giúp mình với ạ, cần gấp lắm ạ :( mình cảm ơn

Giúp mình với ạ , hứa vote 5* cả câu hỏi này và 10 câu hỏi khác ạ