英语选修6外研版module1--7同步检测(语法)(答案)外研版六册全模块复习题二、语法篇 i. 用所给动词的正确形式填空 1. i didn’t need ____(buy) a gift for my host family because i already had one. 2. you don’t have to _____________(leave) now because it’s still early. 3. you needn’t ________________(wash) all these clothes! we have a washing machine to do that sort of thing.