Choose the sentence in which the subject and verb agree.
On the bank of the river was dozens of crocodiles.
Here are the articles on crocodiles.
Has you or your friend ever seen a real crocodile?
There is many volumes of research on crocodiles.

Question

Choose the sentence in which the subject and verb agree. 
       On the bank of the river was dozens of crocodiles.
        Here are the articles on crocodiles.
        Has you or your friend ever seen a real crocodile?
        There is many volumes of research on crocodiles.

anonymous · Answer

Which sounds right to you?

anonymous · Answer

Im not sure, I think it may either be A or B

anonymous · Answer

B

anonymous · Answer

"Are" is plural, as is"crocodiles."