on friday afternoon的friday前为什么不加the?告诉我语法就行

I play basketball on Friday afternoon的同义句是什么 请问是in Friday afternoon还是on Friday afternoon? in the afternoon of Friday还是on Friday afternoon 为什么是on Friday afternoon而不是in the Friday afternoon on friday afternoon的friday前为什么不加the?告诉我语法就行 friday afternoon.friday前面用in还是on? Are you free on Friday afternoon?What do you usully do on Friday afternoon?怎么回答? We don't have any classes on Friday afternoon.(同义) We__ ___classes on Friday afternoon. what classes do you have ____ Friday afternoon?what classes do you have ____ Friday afternoon?这里的空on at for in 用哪个 Friday afternoon前面的介词是什么是on还是in啊,,为什么是= =. I usually play football on Friday afternoon.改为划线提问：（划线的是play football）.. there is an English party___.A.Friday afternoon B.on this Friday C.in this afternoonD.this Friday afternoon i usually play football on Friday afternoon划线提问.. We clean the classroom on Friday afternoon.改为一般疑问句 Do you have a class m___ on Friday afternoon? meet,i,afternoon,want,on,you,to,friday(.) 单句改错：we often play the basketball on friday afternoon 翻译:wants he on afternoon Friday meet to you