Dolphine are know asa (7)______they bear the callat calver

They nice ở dolphin í vết greatly (8)_____mallest dolphins are just about 50kg in weighty and 12 ancters in length while the latest one can weigh up to 8.200kg and í 10 metres long dolphins sẽ soelable creatures . They btogther in group know as bents .they sho...... They are intelligent and make sounds to (10)_____ with each other sclentisa have studied dolphin for many years and are now looking in to thế possibility of dolphins thật sẽ able to cazy (11)_____ tacks uoder thể sea

7:

A: tife B:creatities C:mammals D: fish

8

A: the B:a. C:an B D:and

9:

A: swam B:swim. C: swimming D: swim

10 :

A: connecting B: connectins

C:connected D:connect

11:

A: of B: in. C: out. D: with