问题
选择题
The world has a big headache and it _____ by money. It began in America last year. [ ]
A. cause
B. causes
C. is caused
D. are caused
答案
答案：C
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The world has a big headache and it _____ by money. It began in America last year. [ ]
A. cause
B. causes
C. is caused
D. are caused
答案：C