Comprehension:
In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in
each blank.
Dolphins 1_________ regarded as the friendliest creatures in the sea, and stories of them helping drowning sailors have been
common since Roman times. The more we 2____________ about dolphins, the more we realise that their society is more complex
3__________ people previously imagined. They look 4____________ other dolphins when they are ill, care for pregnant
5___________ and protect the weakest in the community, as we do.
Select the most appropriate option to fill in blank number 2.
