----- Nội dung dịch tự động từ ảnh ----- For questions 47-51, read the text below and decide which answer (A, B, C or D) best fits each blank. MYSTERIOUS BEASTS The study of dinosaurs has (47)_ much headway in the past 20 years. The discovery of numerous fully feathered dinosaurs offers strong evidence of the evolution of birds from their non-flying ancestors, for instance. We also have fossils that (48) ancient patterns of these long-extinct animals. Around 50 new dinosaur species have been named every year of the past two decades. New studies have appeared on dinosaur behaviour, ecology, physiology, brain structure, hearing and many more features besides. It is fruly a treasure trove of data, and new (49) of research keep producing ever more interesting and surprising (50) into these animals. And yet, rather unavoidably, the fossil record is incredibly incomplete. This means that while we may have some ideas be that about the colours of a few dinosaurs, these are only a handful of individuals that may not YEN THI ONLINE representative of their species, (51)_ A. caused B. taken A. conserve B. sustain A. streets B. avenues B. perspectives B. not to mention 47. 48. 49. 50. 51. A. views A. let alone any others. C. made C. preserve C. roads C. glances C. what with D. put D. remain Strần Anh & HSC OTTO CHANN D. highways D. insights D. nevertheless