该公司赞助了我们的环保活动，作为交换条件我们承诺在活动中宣传推广该公司研发的新产品。(response)

This company has sponsored our environmental protection movement, in response to which we promise to promote its newly-developed products during the movement.

考查动词时态和定语从句。根据所给中文句子，本句可用介词 + which引导的非限制性定语从句，“该公司赞助了我们的环保活动” 为主句，“该公司” 作主语，译为this company，“赞助了” 用动词sponsor，根据句意，描述已发生的事对现在的影响，用现在完成时，“我们的环保活动” 作宾语，译为our environmental protection movement，“作为交换条件” 用介词短语：in response to意为 “对……作出反应”，后接which代指前句提到的事，引导非限制性定语从句，“我们” 作主语，译为we，“承诺” 作谓语，用动词promise，描述现在的事，用一般现在时，“宣传推广该公司研发的新产品” 用不定式作宾语，译为to promote its newly-developed products，“在活动中” 作时间状语，译为during the movement。故翻译为：“This company has sponsored our environmental protection movement, in response to which we promise to promote its newly-developed products during the movement.”。