(单选题)

Little children can learn to swim as soon as soon as ______.

A.they can talk

B.they start walking

C.they have no fear of the water

D.they are five or six years old

参考答案：B

参考解析：

细节理解题。根据第一段第二句“Little children can learn to swim as soon as soon as they walk.”可知，小孩学习游泳的最佳时期是他们开始会走路的时候。故选B。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语