Use of English · Parte 2
The swifts are a family of highly aerial birds (0) THAT people think belong to the same family (1) .......... swallows. This is not true, because they are, (2) .......... fact, more closely related to hummingbirds. It cannot be denied that there are some strong similarities (3) .......... swifts and swallows. This is…
Desbloquea todos los exámenes, simulaciones ilimitadas, las 80 fases del juego y mucho más.