board estimate mysterious meaning exchange mystery figure pronounce following stare funny weigh 选择合适的单词并以正确形式填空,一词一用。 1. How life began on Earth is one of the great of science. 2. Many Westerners think that Chinese is a language that they can never understand. 3. The word “spring” has several different and so does the word “ring.” 4. Billy at me in silence for nearly twenty seconds and then left without saying a word. 5. Can you how many more days you will need to finish the book that you are writing? 6. The is my book report, including some background information about the book. 7. Ricardo he could learn English well in six months, but he hasn’t begun his learning yet. 8. Jane had to say goodbye to her friends when it was time to the train. 9. Some students find it difficult to the word “thorough.” 10. Margaret was a very good basketball player. She stood 1.86 meters tall and 72 kilograms. 11. At the end of the game, players traditionally shirts with each other. 12. When I told him what had happened, he laughed out loud as though it was really .