Question

The beaches of Vieques are very important. Leatherback turtles rely on the beaches. Leatherback turtles are the largest turtles in the world. They grow to be over six feet long. Some weigh over a thousand pounds. They can swim over twenty miles an hour. Leatherback turtles can be ________ in water. These giant turtles come to Vieques every year. They lay their eggs in the sandy beaches. Leatherback turtles are endangered. The areas where these turtles nest need to be protected.
A swift B eager
C curious D silent

Answer 1

A swift

"Swift" fits best because the passage notes their speed ("They can swim over twenty miles an hour"), so calling them swift in water matches that fact.