问题补充：
If Alice this afternoon, the meeting should be put off.
A. would not come
B. might not come
C. should not come
D. could not come
答案：
A. would not come
B. might not come
(答案→)C. should not come
D. could not come
解析：should表示可能性，一般有一定的依据.例如：The photos should be ready by tomorrow morning .
