请问在英语中had+p.p是什么意思?has+p.p是什么意思?它们的区别?请举例...
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发布时间:2024-10-24 02:01
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时间:2024-10-24 07:02
had + past perfect tense
had+过去完成时
I had finished doing homework yesterday.
我昨天就已经做完作业了。
has + present perfect tense
has+现在完成时
He has eaten some biscuit.
他已经吃过一些饼干了。