问题描述：
高一英语—现在完成时和过去完成时的用法
对于时态的选择有点不确定,
1、你到哪里去了?我们到处在找你.
Where have you gone?We were looking for you everywhere.
2、玛丽从今天早晨8点开始一直在做作业,刚刚做完.
Mary had been doing her homework since 8 o'clock this morning and had just finished it.
3、他本来打算昨天晚上来的,但是下雨了.
He was going to come here yesterday evening,but it rained.
对于时态的选择有点不确定,
1、你到哪里去了?我们到处在找你.
Where have you gone?We were looking for you everywhere.
2、玛丽从今天早晨8点开始一直在做作业,刚刚做完.
Mary had been doing her homework since 8 o'clock this morning and had just finished it.
3、他本来打算昨天晚上来的,但是下雨了.
He was going to come here yesterday evening,but it rained.
问题解答：
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