【人教新課標】2021年高考一輪復習黃金學案――Unit 3 A taste of English humour（必修四）
the most famous comet of history is called halley's comet, which appears every 76 years. it was named for edward halley, a british astronomer. he 28 the appearance of the comet in 1758, 16 years after his death. halley's comet is 29 bright and has two tails. in the 20th century it 30 in 1910 and 1986.21. a. constructed b. formed c. created d. composed22. a. explain b. solve c. answer d. demonstrate23. a. site b. place c. spot d. mark24. a. tales b. performances c. news d. stories25. a. viewers b. observers c. astronauts d. pilots26. a. finally b. frequently c. easily d. eventually27. a. more b. much c. farther d. extra28. a. guessed b. predicted c. felt d. promised29. a. equally b. entirely c. extremely d. unnaturally