Let's play school - teacher and student.请问附件第一幅图中Let's play school - teacher and student是什么意思?那个短横线是起什么作用,是因为换行吗,还是本来就要?如果是因为换行,那如果不换行,应该用什么

let's play football _____ school.(介词) let's ______ (play) soccer ball after school. let's play the soccer after school.哪里错了 Let's play football after school,shall we?(同义句) Let's ----(play)soccer after school .Good 适当形式 Let's play games after school改为否定句 Let's play games after school.改为否定句 Let's Play! Let's play a let’s play! Let's-play-together. Let's play tennis. Let`s play.OKthank let's play doctors. Let's play football. 将一个句子改为否定句速度,Let‘s play basketball after school( ) ( )( )play basketball after school. It's Sunday.There is ( ) school today.Let's go ( ) and play. let’s play soccer for an hour ()school.in 还是at why?