Giải thích hộ mình mấy câu này nhé (Đề thi thử THPT Quốc Gia) :
A. Mark the letter A B C or D on your answer sheet to indicate the underline part needs correction :
1. Tom likes to gossip about (A) other people, (B) so he doesn't like (C) them to gossip (D) about him.
2. (A) Have a headache, an upset stomach, and a (B) bad case of sunburn did not (C) put me in (D) a good mood for the evening.
3. Genetic engineering (A) is helping researchers unravel the mysteries of (B) previously incurable diseases (C) so that they get to (D) its root causes and find cures.