题目

根据句意和汉语注释，写出单词的正确形式。 1. Like many famous scientists, Li Siguang _________ (致力于) himself to the study of science. 2. _________ (医疗的) workers are badly needed in those earthquake-hit areas. 3. I don’t think the watch gives you good ________ (价值) for your money. 4. The tourists had no __________ （选择）but to wait for the next train. 5. How are you going to ___ (证明) that it is very difficult for giant pandas to survive in the wild? 答案： 1. devoted      2. Medical     3. value       4. choice               5. prove

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