题目内容

18．-where is Tom？He is nowhere to be found．
-I'm not sure，but he _____ have gone to meet Lucy，because Lucy called him earlier．（　　）
A．mustB．shouldC．mightD．can

分析 --Tom在哪？到处都找不到他．
--我不确定，但是他有可能去见Lucy了，因为Lucy早些时候打电话给他．

解答 答案：C
解析：A：必须；一定；B：应该；C：可能；或许；D：可能．根据前面的"我不确定"可知Tom"可能"去见Lucy了，故本题答案为C选项．注意：can表示推测时一般用于否定句和疑问句，故本题不能选择D选项．

点评 本题考查情态动词，做此类题目时一定要分析每个选项中情态动词的含义及其用法，再结合原文及句意确定最终的答案．

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