S1：youbasketball with friends this month?S2:No,I.I_ _____basketball with friends on 24.Feb.是填did（过去式）,还是have/has been(现在完成时),如果用现在完成时的话,应该加yet吧,如果用过去式

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S1：______you______basketballwithfriendsthismonth?S2:No,I________.I______________basketballwithfriend

S1：______you______basketball with friends this month?S2:No,I________.I_______ _______basketball with friends on 24.Feb.是填did（过去式）,还是have/has been(现在完成时),如果用现在完成时的话,应该加yet吧,如果用过去式
S1：______you______basketball with friends this month?
S2:No,I________.I_______ _______basketball with friends on 24.Feb.
是填did（过去式）,还是have/has been(现在完成时),如果用现在完成时的话,应该加yet吧,如果用过去式的话又不太恰当,而且我们现在在教现在完成时.回答时,能把句子重新抄一遍.

will play
won't have played

will,play
won't
will,play
用将来时.

have you played basketball with friend this month
no ,ididn't.i have played basketball withfriendon

闪光灯S1, (s3-s2)/s2-(s2-s1)/s1=? 闪光灯的s1 char *s1=abc, L5/S1椎间盘突出是什么意思 short s1 = 1; s1 = s1 + 1;有什么错?short s1 = 1; s1 += 1;有什么错s1 += 1是不是相当于s1=(s1)(s1+1) 为什么(s1/t1)/(s2/t2)=(s1/s2)/(t1/t2) while(*s1&&*s2&&*s2++==*s1++);怎样理解如何证明S6-S1是S2-S1的5倍 System.out.println(s1 = + s1); 为什么要这么写? S2-S1=at^2S1 S2指什么如何证明S6-S1是S2-S1的5倍 s1与s1合并之后的字符串//英语翻译 matlab中s1=[s1；x(i)]什么意思有品S1 S1和S2有什么区别有品S1 S1和S2有什么区别开关S1与S2并联,S2控制小灯泡,S1控制S1与电铃,闭合S1,S2发生什么现象 pvc的s0,s1,s2,