精选优质文档-倾情为你奉上一、单项填空(从题中所给的A、B、C、D四个选项中，选出最佳选项)1.With natural resources becoming fewer and fewer, how to make use of _ energy, such as sunlight and wind, has become our top priority.A. active B. alternativeC. affordable D. ancient2.They had been childless for many years, so when a little girl was born in the family, the parents couldnt help showing great _ to her.A. allocation B. affectionC. appreciation D. admiration3.To prevent price decrea
