-- don't smoke any more lt'a bad for your health -- l'm trying to --- lt's really hard you knowa\ turn it onb\ put it offc\ give it upd\ take it out说理由!

-- don't smoke any more lt'a bad for your health -- l'm trying to --- lt's really hard you knowa\ turn it onb\ put it offc\ give it upd\ take it out说理由!
-- don't smoke any more lt'a bad for your health -- l'm trying to --- lt's really hard you know
a\ turn it on
b\ put it off
c\ give it up
d\ take it out
说理由!

-- don't smoke any more lt'a bad for your health -- l'm trying to --- lt's really hard you knowa\ turn it onb\ put it offc\ give it upd\ take it out说理由!
选择c.give it up “戒掉”,其他都不符合句意：
a.turn it on 打开
b.put it off 推迟
d.take it out 拿出

选C. 首先你要理解题目中对话所讲内容的意思,前者叫后者不要抽烟,后者回答:我正尽力? 我们可以猜测他正尽力戒烟。再一看选项A 的意思是“打开；发动”B “推辞；扔掉；阻止´C 放弃D“取出;出发” 由此可知答案选C

C give it up 是放弃的意思