Is your watch made ____gold?This cake was made ____suger ,flour,butter and eggs.___里填介词..

问题描述:

Is your watch made ____gold?This cake was made ____suger ,flour,butter and eggs. ___里填介词..

Is your watch made __of__gold?This cake was made __from__suger ,flour,butter and eggs
看得出原材料用of,看不出原材料用from