问题
选择题
Five-year-old children are too young to go to school, ______? [ ]
A. are they
B. aren't they
C. were they
D. have they
答案
答案：A
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Five-year-old children are too young to go to school, ______? [ ]
A. are they
B. aren't they
C. were they
D. have they
答案：A