Mr.Bush is on time for everything.How ________ it be that he was late for the op
题型：不详难度：来源：
| Mr.Bush is on time for everything.How ________ it be that he was late for the opening ceremony. |
答案
| A |
解析
can表示可能性的推测，常用于疑问句或否定句中；may表“可能性”常用于肯定句或否定句中，must常用于肯定句中表推测，“一定……”的意思。注意：can not表示“不可能”，而may not表示“或许不……可能不……”，两者语气上有区别。 |
举一反三
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