米莉很小的时候就会骑车了 Millie ( ) ( ) ( ) ( ) a bike when she was very young.
问题描述：
米莉很小的时候就会骑车了 Millie ( ) ( ) ( ) ( ) a bike when she was very young.
答
was able to ride
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答
was able to ride (be able to强调后天努力习得的能力)