lifted,were driving,started,本课栏目开关,语法感知,played,has won,语法感知,本课栏目开关,知识储备,本课栏目开关,知识储备,本课栏目开关,知识储备,本课栏目开关,gave,didnt see,realized,moved,walked,went,知识储备,本课栏目开关,知识储备,本课栏目开关,知识储备,本课栏目开关,知识储备,本课栏目开关,were having,was singing,were discussing,was travelling,知识储备,本课栏目开关,知识储备,本课栏目开关,知识储备,本课栏目开关,知识储备,本课栏目开关,知识储备,本课栏目开关,have finished,has lived,has done,is/has been,知识储备,本课栏目开关,
