问题
选择题
We usually have supper at six o'clock, but _____ we do at 6:30. [ ]
A. all the time
B. at one time
C. at times
D. on time
答案
答案：C
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We usually have supper at six o'clock, but _____ we do at 6:30. [ ]
A. all the time
B. at one time
C. at times
D. on time
答案：C