I'd like to be a professional singer, but I don't think I've got__________.

I think it ______ that she should be knowledgeable about computers for her present job.

To reduce emissions of greenhouse gases, many countries are increasing the use of natural gas, wind and other forms of _______ energy.

Having no child of their own, the Smiths took in a _____ girl, Yuan Yuan by name．

–You’ve got a stomachache? But we ate at the same place. How come my stomach is fine? --You have an iron stomach! Mine isn’t ___ strong.