问题
选择题
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.have been
答案
答案:A
考查主谓一致。时间,金钱等做主语,谓语动词用单数,排除BD;本句没有必要使用完成时。故答案为A。