Highly( )craftspeople are needed for the renovation and repair of the plumbing systems.
A．natured B．mended
C．skilled D．turned
答案：C 【解析】A選項nature自然；B 選項mend修補； D 選項turn變成；C選項skill技術。根據句意，需要非常熟練的工匠。所以這題應該選擇C。
