Researchers have explored the possibility that dolphins are able to be
trained to communicate as humans
A) are able to be trained to communicate as humans
B) were able to be trained to communicate like humans
C) can be trained to communicate like humans can
D) are capable of being trained to communicate like humans do.
E) are capable of being trained to communicate as humans do.
The correct answer: E
Please advice why option D is incorrect.
trained to communicate as humans
A) are able to be trained to communicate as humans
B) were able to be trained to communicate like humans
C) can be trained to communicate like humans can
D) are capable of being trained to communicate like humans do.
E) are capable of being trained to communicate as humans do.
The correct answer: E
Please advice why option D is incorrect.
