In the past,we also issue letters before students' final year began to let them know what they needed to take in the final year to be OK,but we don't do that anymore.这句话里面的issue 怎么不是过去式啊?began 是把前面的整句话当

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Inthepast,wealsoissuelettersbeforestudents''finalyearbegantoletthemknowwhattheyneededtotakeinthefinal

In the past,we also issue letters before students' final year began to let them know what they needed to take in the final year to be OK,but we don't do that anymore.这句话里面的issue 怎么不是过去式啊?began 是把前面的整句话当
In the past,we also issue letters before students' final year began to let them know what they needed to take in the final year to be OK,but we don't do that anymore.
这句话里面的issue 怎么不是过去式啊?began 是把前面的整句话当成是主语么?可以分析下这句话语法么?

In the past,we also issue letters before students' final year began to let them know what they needed to take in the final year to be OK,but we don't do that anymore.这句话里面的issue 怎么不是过去式啊?began 是把前面的整句话当
in the past,是状语
we是主语 also issue是谓语 貌似前面省略了 should
letters是宾语
before students' final year began 是时间状语从句 修饰 issue
to let them know是目的状语从句 修饰issue
what they needed to take in the final year to be OK,是宾语从句 作 know的宾语
but we don't do that anymore是并列句.
句子意思
过去,在学生的最后一学年开始之前 我们将 给学生发函 让他们知道为了顺利毕业 他们在最后一年需要做什么,但我们现在不这样做了.