问题
We live day by day，but in the great things the time of days and weeks ____ so small that a day is unimportant.
A:is
B:are
C:has been
D:havebeen
B:are
C:has been
D:havebeen
正确答案是：
同类题型
e me, I wonder if youcan help I have lost my ID card—- But where______ you______it
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They thought too much about______
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