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英语时态问题……………………!

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英语时态问题……………………!
这些都是我写的英语作业的一些小片段,在空格地方我不知道应该用什么时态,
① I will listen for about three times to check my notes and figure out what I ___(miss) and what I ___ not well in the first time.
这句话的意思是我将听演讲听三遍然后找出我在听第一遍时所犯的错误和所遗失的,空格中相对于三遍来说是过去发生的,第一遍听时发生的,但这只是假设发生的,并没有在过去真正发生过,我就不知道该用什么时态了……
② For taking notes,I can’t make my notes very quickly and correctly because I am not familiar with those note-taking skills and as I said it is hard to catch key points,perhaps all I ___(write) down is just some unnecessary information.
这句话和上面那句话一样,是假设相对于现在来说,已经发生的,也不知道该用什么时态.
③ The theory was used until 1930s.In the 1930’sthe theory was questioned since there was no science to support it.Generally speaking,the theory__(be)no longer correct.
这里不知道该用was还是is,因为这个理论不再正确是发生在过去的,但这个理论在现代依然不正确,就不知道该用过去的was还是一般现在的is.
④ Though the theory of race__(be) questioned,it is still useful.
这里也是,这个理论在过去就被质疑,但到今天它依旧被质疑,该用was还是is?还是都可以?
英语时态问题……………………!
只要不太离谱,老师不会扣分的.主要是内容好!
(1) 可以用现在时 : miss, lose...
(2) 因为前面你用"said",后面需一致: wrote
(3) is =永远是现在时...
(4) has been questioned; is (being) questioned...