Các Anh chị làm giúp em ----- Nội dung dịch tự động từ ảnh ----- Mark the letter A, B, C, or D on your answer sheet to show the underlined, pa Question 46: Two thousand years ago, most of western Europe was populated by that needs correction. A B C fierce, strong, artistically people known as the Celts. D Question 47: When a simple action such as lifting one's arm is performed, the A work is divided between at least three different muscle groups. с D Question 48: The average cat sleeps sixteen hours for a day, in short intervals A B C called "cat naps". D Question 49: Psychological studies show that many students feeling terrible abou A B the results of tests on which they have actually performed well. D C Question 50: Palcoanthropologists believe that prehistoric man was innate a A B gentle, cooperative, food-sharing creature. C D
