what do you have on Mondays?中的Monday为什么加S?

应该是what do you have on Monday?还是what do you have on Mondays? 排序 ( )What do you have on Mondays? “you do on have mondays you what” 连词成句 组词成句：have,what,Mondays,do,lunch,on,you,for(?) Mondays,lunch,for,have,what,you,do,on 连词成句：do have what you Mondays on classes ? what do you have for lunch on Mondays怎么回答? What do you have on Mondays.准确的翻译 What do you have for lunch on Mondays?的中文 what classes do you have on monday? what do you have on Monday?中文 What subjects do you have on Monday?