Where()my book?I can't find it anywhere I()it on this table but now it's gone
问题描述：
Where()my book?I can't find it anywhere I()it on this table but now it's gone
a.were you putting; have put b.had you put ;was putting c.have you put;put d.did you put;have put选哪个请解释
答
选择B因为gone 是过去分词,是一个过去完成时,had + done 表示在过去得某个时间或动作以前已经发生的动作或已经存在的状态我的练习册选c该怎么办C是现在完成时，在这个句子中不适用。练习册答案是C的话，个人感觉是错的。