Which verb agrees with its subject? The early professional efforts of P.T. Barnum __________ very successful.
a. was
b. isn't
c. wasn't
d. weren't

Respuesta :

The answer is d. weren't, because the subject (P.T. Barnum's professional efforts) is plural.

Hope this helped!

Dansko
The answer would be (C. wasn't)

Automatically cross out (B. Isn't) because this was in the past not present.

Cross out (A. was) because the professional efforts of P.T. Barnum was not very successful.
 
Finally, cross out (D. Weren't) because weren't means your talking about more the one person.

And that leaves you with (C. wasn't)