3. keep on doing sth. 继续做某事(表动作的反复) keeping doing sth. 保持做某事(表动作或状态的持续) 4. be sure about +名/代/V-ing“肯定” Are you sure about that? make sure (that)+从句“…...确保...…” Make sure that both doors are closed when you go...
7. keep doing sth. 一直做某事 I kept studying English for 1 hour yesterday evening. 昨天晚上,我一直学了1小时英语。 8. put off doing sth. 推迟做某事 Sometimes students put off doing their homework until the last minute. 有时学生们会拖延到最后一分钟...
更多内容请点击：初二英语上册:Unit 6重要知识点+课文翻译 推荐文章