I had been working on math for the whole afternoon and the n

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I had been working on math for the whole afternoon and the numbers（）before my eyes.
A、swim B、swum C、swam D、had swum
选哪一项,为什么?

$I had been working on math for the whole afternoon and the n$

had been working 过去完成时态表明这个动作在过去的某个时段已经完成了 the numbers swam before my eyes一个过去式就ok了其实swam就已经有过去的意思了无论多久的过去.had swum感觉上说已经眼花什么的额不好

I had been working on math for the whole afternoon and the n 这句话有没有时间状语?是哪个?“I had been working on math for the whole aft John has been working on the essay whole afternoon and he st My father has been working on this farm for the whole five y I had been expecting_________ letters the whole morning,but i would have been there on the spot had it not been for the After working for the whole day.he____tired. On__sunny afternoon,my parents and i had a good timne on the He has been working the whole moring and he still___ A.does The whole village has been working day and night gathering a I studied for the math test for the whole night.but he spent a whole night () the desk for the math exam.A.on,B.