题目内容
The girl__________ swim when she was only four years old. Isn’t it amazing?
| A．could | B．may |
| C．can | D．must |
A
解析试题分析：句意：这个小女孩只有四岁的时候就会游泳了，难道不令人惊讶吗？由时间状语从句“when she was only four years old”可知用一般过去时，表示具备某种能力，故选A。
考点：考查情态动词的用法。
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