they ___on walking until they found a lack.为什么用kept而不是continued

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/19 00:19:48
they___onwalkinguntiltheyfoundalack.为什么用kept而不是continuedthey___onwalkinguntiltheyfoundalack.为什么用kept

they ___on walking until they found a lack.为什么用kept而不是continued
they ___on walking until they found a lack.为什么用kept而不是continued

they ___on walking until they found a lack.为什么用kept而不是continued
此处有ON ,keep on ===continue