The simple past perfect tense 去完成时
Past Perfect Simple 去完成时
The past Perfect Simple 过去完成时
Past Simple vs Present Perfect 一般过去时和现在完成时
B. Fill in the blanks with the past perfect or simple past tense of the verbs in brackets.
试用括号里动词的过去完成时态或一般过去时态来填充空格。
Most of the grammar is just past simple and past perfect.
大部分的语法都是一般过去时和现在完成时。
At first glance it looks as if there is no element of "present involvement" in this use of the present perfect any more than in the simple past.
乍看起来，在现在完成时的用法中，似乎跟在一般过去时中一样，都没有“涉及现在”的因素。
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