1. The young man was charged with _______(break) into several computers. 2. The radio says there will be much _______(snow) next week. 3. Yang"s great _______(achieve) in science go beyond what we have thought. 4. Scientists can"t explain _______(appear) of dinosaurs correctly. They are trying their best to find the reason. 5. Are people who work till 10 o"clock in the evening more _______(energy) than those who stop at 5 o"clock in the afternoon?