17, B. not succeed
18, A. get well
19, D. cautioned
20, C. consumption
21, B. being overweight
22, A. reduce
Lưu ý: Chúng ta dùng "reduce stress" (giảm stress) chứ không dùng "relax stress"
23, B. injection
24, C. avoid
25, D. block
26, A. light
Giải thích: light (adj): nhẹ
27, D. becoming bigger
28, A. broad
29, B. normal
30, C. vital