De acordo com o texto, é correto afirmar que the verb to be ...
Texto
The History of the Motion Picture
Who invented Cinema, the Camera, or Film?
(Adapted from a text available at
http://inventors.about.com/library/inventors/blmotionpictur
es.htm. Accessed on 02/6/2011, at 9h15min)
De acordo com o texto, é correto afirmar que
the verb to be (line 25) is in the third person
singular.