问题描述:
过去分词做非谓语可以和定于从句转换吗
hey reduced the number of animals used in experiments. 可不可以写成They reduced the number of animals which are used in experiments.
hey reduced the number of animals used in experiments. 可不可以写成They reduced the number of animals which are used in experiments.
问题解答:
我来补答展开全文阅读