在表示“A如此”,“B也如此”时用so+助动词+主语,如
1、He goes to school every day.So do I.他每天上学,我也如此.
2、He is fourteen.So am I.他十四岁,我也十四.
3、He can speak English.So can I.我也会.
对别人情况加以肯定时常用so+主语+助动词
如：1、The students work hard.So they do.同学们学习努力,他们确实努力.
2、He is good at maths.So he is.他善长数学,他确实善长数学.