如果我有机会去美国，我会欣然接受。

If I had the chance to go to the US, I'd ___jump ___at it.

当亨利邀请她和他巴黎外的朋友共度周六时，她欣然抓住了这个机会。

She ___jumped ___at the opportunity when Henri invited her to spend Saturday with his friends outside Paris.

当被提供晋升时，他立即欣然接受了领导新项目的机会。

When offered the promotion, he immediately ___jumped ___at the chance to lead the new project.