tìm lỗi sai và sửa
2, The boy whom is sitting next to you is my brother
A, whom B, sitting C, next to D, is
3,Peter together with his parents have gone to London on holiday
A,together with B,have C,to D, on holiday
4, He is the person who son has been working in this company for ages
A, who B,has been working C, in D, for