求讲解,不应该选第4个吗?smithisn'tansweringhisphone.he()shopping,orperhapscanhavegone,mighthavegone,mightbegoing应该选哪个?

Question

求讲解,不应该选第4个吗?smith isn't answering his phone.he ()shopping,or perhaps
can have gone,might have gone,might be going应该选哪个?

Answer 1

同学,
选择 might have gone
句子前面是一般时态,意思是：史密斯现在不能接电话.后面应该表示猜测,但是他的肯定程度是不高的,因为只是个人的猜测.
or perhaps 或者的意思.这是肯定的猜测,可能去了购物了.
can have gone can的肯定程度是很高的,他肯定去了购物,既然是猜测又怎么会那么肯定呢?
might be going 这里是被购物,人都是主动去购物的,没有被动的说法.
句子翻译：斯密斯现在不能接听他的电话,他可能已经去了购物.
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