真纠结的英语词组的区别!be in 和 be ; have been in 和 have been;the last week 和 last week……

真纠结的英语词组的区别!be in 和 be ; have been in 和 have been;the last week 和 last week……
1.be in 和 be (have been in 和 have been)的区别
例:They have been in China for two years.
They have benn Chian for two years.
2.the last week 和 last week 还有 a week before 的区别
例:I've been like this ever since ()
A.last weekB.for a week(我知道肯定错) C.a week before(这个也肯定错)
D.the last week (希望把这整句翻译一下)
3.When 这个疑问词提问的是一段时间还是一点时间?
4.改写句子I got to sleep two hours ago.
I (have) (been) (asleep) since () ( ) (括号里是我填的,后面两个空我觉得似乎少了一个空)
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英语人气:221 ℃时间:2019-08-20 07:42:24
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1.be in 和 be (have been in 和 have been)的区别例:They have been in China for two years.They have been China for two years.(错句)have been in,have been to,have gone to这三个短语都有“到某地去”的...
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