Some choppy sentences (断断续续的句子) can be rearranged by parallelism. Wind is an enduring source of power. Water is also an unlimited energy source. Dams produce hydraulic power. They have existed for a long time. Windmills are relatively new. Rearranged sentences: √ Both wind and water are enduring sources of power. Dams have produced hydraulic power for a long time, but windmills are relatively new. Rearrange the following sentences. 1. (a)The grading system at our college should be abolished. (b) The students do not like getting grades. (c) The instructors do not enjoy giving grades. _______________________________________________________________________________________________. 2. (a) Education in a free society teaches children how to think. (b)Education in a dictatorship teaches children what to think. _______________________________________________________________________________________________.