—You’re coughing badly，Martin. Why not give up smoking?
—Give up smoking？Easier said than done，Amy. Once you the habit of smoking，it is very hard for you to .
A. keep up; break it away
B. take up; drop it out
C. pick up; get rid of it
D. build up; do away with it
网友回答
A. keep up; break it away
B. take up; drop it out
(答案→)C. pick up; get rid of it
D. build up; do away with it
解析：这题考查词组辨析:第一空考查pick up“染上”,第二空考查get rid of “戒掉”，句意是;一旦你染上了抽烟的习惯，就很难戒掉选C。