题目内容
在短文空白处填写适当的词(每空不多余3个词)或所给词的正确形式。
People feel 1. (puzzle) by some unexplained phenomena, one example of 2. is the possible existence of Yetis. 3. is said that the Yeti is_4. (tall) than an average human but walks with amazing speed and strength. Though some people even reported 5. (see) the footprints belonging to a Yeti, no stronger evidence for its 6. (exist) has been found.
7.the development of science and technology, _8. is unknown to us today _9. (be) explained in the future. We hope that _10._ (science) will solve the mystery one day and give us a satisfactory answer.
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