问题补充：
As I have a meeting at four, ten minutes all that I can spare to talk with you.
A. are
B. was
C. is
D. were
答案：
A. are
B. was
(答案→)C. is
D. were
解析：考察主谓一致.句意:由于我在四点有一个会议,我最多只能分出十分钟时间和你谈话.本句中十分钟是一个抽象概念,不可数,故谓语动词用单数.结合语境可知本句描述的是现在的状态,故用一般现在时态,选C.
