问题
选择题
isn’t good for our health, but there's always something making us [ ]
A. Happiness, happy
B. Sadness, happy
C. Sad; sad
D. Sadness; sad
答案
答案：D
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isn’t good for our health, but there's always something making us [ ]
A. Happiness, happy
B. Sadness, happy
C. Sad; sad
D. Sadness; sad
答案：D