精选优质文档-倾情为你奉上词性转换比较等级名词单复数. 单句练习1. They are always gathering in their winter food in the middle of summer and they are making _ (prepare) for the long cold winter. 2. But such a small thing couldnt _ (possible)destroy a village. 3. It was _ (consider)of Michael to inform us of his delay in case we got worried. 4. How beautifully she sings! I have never heard a _ (good) voice. 5. The girl used to be shy, but is _ (gradual)getting active