John has been working on the essay whole afternoon and he still( Ahas been B does C has DisJohn has been working on the essay whole afternoon and he still( Ahas been B does C has Dis

John has been working on the essay whole afternoon and he still( Ahas been B does C has DisJohn has been working on the essay whole afternoon and he still( Ahas been B does C has Dis
John has been working on the essay whole afternoon and he still( Ahas been B does C has Dis
John has been working on the essay whole afternoon and he still(
Ahas been B does C has Dis

John has been working on the essay whole afternoon and he still( Ahas been B does C has DisJohn has been working on the essay whole afternoon and he still( Ahas been B does C has Dis
Dis
全句是：
John has been working on the essay whole afternoon and he is still working on it .
后面说：现在还在做,现在进行时

John has been working on the essay whole afternoon and he still( B )?
本来在这种句子中，最后就应该用do来泛指“have been”，用这个以省略全部的动词。
又因为是三单形式，所以用does。

选D 因为前面是现在完成进行时，就是说约翰已经工作了一整个下午了直到现在，那后面的并列分句说的肯定是现在正在进行的，即现在进行时，意思是他仍然正在工作，he still is working on....... 省略了后面的部分