Jim ______speak two foreign languages when he was only twelve.为什么填was able to不填could?
问题描述：
Jim ______speak two foreign languages when he was only twelve.为什么填was able to不填could?
Jim ______speak two foreign languages when he was only twelve.
为什么填was able to不填could?
答
前者表示经过后天的努力,后者表示与生俱来.