根据汉语句子完成英语句子：男孩子们因这次挑战而激动.The boys _____ _____ ____this challenge.
问题描述：
根据汉语句子完成英语句子：男孩子们因这次挑战而激动.
The boys _____ _____ ____this challenge.
答
are excited for
答
are excited in
答
The boys【 were excited by 】the challenge.