Question

you must be very tired.You___like this for days. A work B worked C will work D have been working

which shoule be choose ?Why?

Answer 1

选D
注解：
因为该句后面有表示时间段的时间状语for days，译为：这些天，表示动作一直持续，而且目前仍在进行，所以用现在完成进行时，故选D 。
以后再做此类题时，要特别注意句子的时间状语。

如满意，请采纳，如有疑问，请追问，好运！

Answer 2

chooseD
for days indicates that this acition continues into the present,and maybe into the future.

Answer 3

D have been working
强调一直在工作，所以累了。

祝你进步

Answer 4

D 前一个句子说非常累，后面就要说一直在这样工作，因为D是现在完成进行时，所以强调的是一直做同样一个动作一直到现在，所以才造成了很累。

Answer 5

D no reason,no why

Answer 6

D,后面有for days