—Alice promised me to come round to keep you company today.—But she . I've been alone all

问题补充：

—Alice promised me to come round to keep you company today.

—But she . Ive been alone all day.

A. won

B. hadn

C. hasn

D. doesn

答案：

A. won

B. hadn

(答案→)C. hasn

D. doesn

解析：C考查时态。句意：“爱丽丝向我保证今天过来陪你。”“但她还是没有来。我一整天都是一个人。”现在完成时表示动作到现在已经完成。she hasn come表示“她到现在都还没有来”，符合题意。