Question

look at the text below. if there is an error with subject - verb agreement, select the incorrect verb and type it correctly. otherwise, submit the text without making any changes.
the cocoa frog, along with fifty - nine other new species, was discovered by a team of field biologists from conservation international in 2013.

Explanation:

In subject - verb agreement, when a phrase like "along with" is used, the verb should agree with the main subject. Here, the main subject is "The cocoa frog" (singular), and "was" is the correct singular past - tense form of the verb "to be" for a singular subject.

Answer:

The cocoa frog, along with fifty - nine other new species, was discovered by a team of field biologists from Conservation International in 2013.