为什么 this afternoon不用加介词,而 in the afternoon要加?that day,the other day,也不要at that time 就要加了 我什么啊

What about going climbing this afternoon? 中,为什么用going?并回答为什么不用go原形？ we're going to have a picnic this afternoon.为什么要用have不用do? I'm leaving home this afternoon.--Why so ( )用soon,不用early,为什么? Ben asked me to go fishing with him this afternoon.为什么不用going 为什么 this afternoon不用加介词,而 in the afternoon要加?that day,the other day,也不要at that time 就要加了 我什么啊 he would like to play basketball this afternoon.这个句子不是第三人称单数吗?为什么play不用plays? this afternoon , 选择,thank you!（）you go shopping with me this afternoon?A.Does B.Are C.Will D.Did为什么不用are? Mr White is the first person to arrive and will arrive at three this afternoon 为什么 the first person to arrive中 要用 to arrive 而不用 arrive we sometimes play basketball on Monday afternoon .为什么不用sometimes? Is Mike free this afternoon? 为什么要用一般现在时 He played football this afternoon.为什么用一般过去时 今天下午 用英语怎么说?是this afternoon?还是today afternoon?为什么啊 i got an interview this afternoon this afternoon 表将来时 为什么要用got这个过去式和i have an interview this afternoon有什么不同? i'm going to meet my uncle and aunt at the airport___Sunday afternoon.为什么正确答案是A?不用加介词?A.this B.on this C.in D.on next 在英语中,this morning,this evening是不是表示将来时为什么不一定?那this afternoon？ Are they going fishing this Saturday afternoon.为什么不能是Did they go fishing this Saturday afternoon? 在中午为什么用 at noon,而不用 in noon 为什么在下午是 in the afternoon 而不是 in afternoon