英语翻译

题目

英语翻译
2.他十岁就参加了全国钢琴比赛
He _ _ _ the National Piano Competition when he was ten

答案

It is (easy)(for) him (to)solve this problem
2.他十岁就参加了全国钢琴比赛
He(took)(part)(in)the National Piano Competition when he was ten