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you can't imagine ____I want to go back to my hometown.It's

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you can't imagine ____I want to go back to my hometown.It's quite a few years since I left there.
A.how much
B.how long
C.how often
D.how soon
——He's already back to USA?
——_____,He is on a visit to Shanghai.
A.isn't he;No
B.hasn't he;No
第一个选A how much 表示程度、多么
第二个选A isn't he; No,这个上面两位选错了
He's是 He is,全句是 He is already back to USA,isn't he?
假如说He's 是He has,那么你看:He has already back to USA,hasn't he?对吗?显然不对.
只能说He has already gone/been back to USA,hasn't he?
再问: already译为【已经】不是代表着现在完成时的标志性词语么? 我想原句应该也可以译为【已经回到英国】,所以否定句是现在完成时的否定句么?为什么?
再答: 正如我所说,如果是完成时,那么句子的谓语在哪里?你在句子里有看到一个动词吗?
再问: back to 译为【回到】是动词么
再答: 当然不是,back(回来的)可是个形容词. 顺便多说两句关于already。没错already是“已经”,但不是一见到already就要用完成时的,对于简单描述状态的句子,还是用一般时。比如You are already ill(你已经病了)。你题目中的句子也一样。