Tìm lỗi sai hộ mik nhoa

1. He became interest(A) in reading(B) while(C) he was working(D) in the city library

2. I haven’t enjoyed(A) myself(B) so much(C) since(D) many months.

3. There(A) is so many(B) information(C) in this dictionary(D)

Tại sao m = 180kg vậy ạ ?