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For each question, mark the letter A, B, C, or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 37 to 40.
A. but they need care and attention
B. help keep the balance of nature
C. Some animals can be trained to help people
D. Many wild animals face threats from human activities

Animals are an important part of our world. They come in many shapes and sizes. Some animals live in the wild, while others are kept as pets. For example, a dog is a common pet, (37) __________. Cats are also popular pets because they are independent and can take care of themselves. (38) __________. They often stay close to their owners and provide companionship. In the wild, animals like lions and elephants (39) __________. Lions are known as the kings of the jungle, and they are strong and powerful. Elephants are the largest land animals, and they are known for their intelligence and memory. (40) __________. It is important to protect them and their habitats.

Question 37: ...............
Question 38: ...............
Question 39: ...............
Question 40: ...............