问题
选择题
They _____ at six o'clock in the evening. [ ]
A. do homeworks
B. do their homework
C. does his homework
D. do their homeworks
答案
答案：B
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They _____ at six o'clock in the evening. [ ]
A. do homeworks
B. do their homework
C. does his homework
D. do their homeworks
答案：B