Thesemeasuresincludebetteradministrationofareasthatare...

問題詳情：

 These measures include better administration of areas that are likely to turn into desert, and ______ people in how to use water without wasting it.

      A. train                        B. to train                    C. training                    D. trained

【回答】

C

知識點：非謂語動詞

題型：選擇題