题目内容
this key is your mother’s.
| A．May | B．Maybe | C．May be | D．Can |
B
解析试题分析：本题的含义是这把钥匙可能是你母亲的。may和can是情态动词，表示可能性，通常位于句中，后加动词原形构成谓语，不能单独使用，而maybe是副词，可以位于句首，句中或句尾，故本题选B。
考点：may，may be和maybe的区别。
点评：在英文中应注重情态动词和副词的用法，情态动词不能单独使用，后需加动词原形，共同构成谓语，而副词却可以单独使用，在句中通常作状语。
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