他参加比赛已经超过十年了。

He has been ___racing for over ten years.

当我们还是男孩时，我经常和他比赛。

I used to ___race against him when we were boys.

骑行也给了我机会在欧洲和美国参加比赛和训练。

Cycling has also given me the opportunity to ___race as well as train in Europe and the U.S.