Genetic engineering is helping researchers unravel the mysteries of previously incurable diseases so that they can get its root causes and find cures.
A. is helping
B. previously
C. so that
D. its
Đáp án: D
Giải thích: diseases => their
Dịch: Kỹ thuật di truyền đang giúp các nhà nghiên cứu làm sáng tỏ những bí ẩn của những căn bệnh nan y trước đây để họ có thể tìm ra nguyên nhân gốc rễ của nó và tìm ra phương pháp chữa trị.
Hughes, 26, a sports therapist, ____ 53 marathons in 53 days in 53 different UK cities.
Slums are urban areas that are _______ populated with substandard housing and very poor living conditions.
I was kept awake for most of the night by the ______ of a mosquito in my ear.
Mark the letter A, B, C or D to indicate the underlined part that needs correction
According to the results of a survey which conducted by a USA magazine, there isn't really a generation gap.
Indicate the underlined part that needs correction
Hoa flew to Paris to visit her grandma, so to see Eiffel Tower.
The main aim of the campaign is to raise __________ of the issues involved.
Alex dreams of going on tour – he's just waiting for his big ______ to get his foot in the door of the music industry.