Fill in the following blanks with the words or expressions given below.Change the form where necessary. board estimate figure imagine meaning mysterious mystery object pronounce stare weigh present 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. I could not believe my eyes. She was far more beautiful than I had_______ . 7. Ricardo always_______ he could learn English well in six months, but he never really began his learning. 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. One of the girl students_______ a bunch of flowers to the professor who had just given a lecture on the mysteries of the English language. 12. Look, there is a strange_______ in the sky!