问题
选择题
It’s already 6 o’clock, but the children are not back ______. [ ]
A. also
B. either
C. yet
D. too
答案
答案：C
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It’s already 6 o’clock, but the children are not back ______. [ ]
A. also
B. either
C. yet
D. too
答案：C
上连续．