随堂演练即时体验巩固提升单项填空1He didnt _school yesterday because he had to _ his sick mother.A. attend; attend on B. join; attendC. go to; see D. join in; attend to答案与解析Aattend school “上学”; attend (on/upon) sb. “照看、侍候某人”。2Jones, the eldest of the eight children, had to_out of high school at the age of 16 to help his father on the farm.A. leave B. dropC. fall D. go答案与解析Bleave school“离校;退学;毕业”; drop out “辍学”; fall out “争吵;发生;产生的结果”; go out“走出”。句意:琼斯, 8个孩子中的老大,在他16岁时不得不辍学挂念父亲在农场干活。应选drop与句中out of搭配。