Welivedaybyday,butinthegreatthings,thetimeofdaysandweek...

问题详情：

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

【回答】

A

知识点：主谓一致

题型：选择题