I learned to _______ a bicycle when I was a small boy

I learned to _______ a bicycle when I was a small boy I learned how to a bicycle when I was six years old. 　　 　　A. When I was a small boy,I had often sat for hours playing wit when i was a boy i was a football fan When I was a young boy,I was so shy that I dare not talk to when I was a boy ,I_chocolate. when i was a young boy 歌词 when i was a boy 同义句 I remember when I was a young boy,I used to refuse to follow I was very fat when I was a little boy.对 when I was a little I learned to ride a bicycle five years old(就画线部分提问) 英语翻译I used to travel by air a great deal when i was a boy.My