Question

20. There are many places on the seabed which haven’t been ______.

A. performed B. explored

C. affected D. impaired

21. Some baby animals live_____ from their parents right after they were born.

A. depend B. independent

C. dependence D. independently

Answer 1

20. There are many places on the seabed which haven’t been explored.

21. Some baby animals live independently from their parents right after they were born.

Answer 2

20. B. explored

21. D. independently