To our delight, up till now, the European Union, Japan, and Russia ________ their targets for CO2 emissions (排放).

To our delight, up till now, the European Union, Japan, and Russia ______ their targets for CO2 emissions (排放).

1. A.
   give
2. B.
   have given
3. C.
   give
4. D.
   gave

 To our delight, up till now, the European Union, Japan, and Russia ________ their targets for CO2 emissions (排放).

A. give             B. have given          C. give                D. gave

 To our delight, up till now, the European Union, Japan, and Russia ________ their targets for CO2 emissions (排放).

A. give               B. have given          C. give                D. gave

To our delight, up till now, the European Union, Japan, and Russia ________ their targets for CO2 emissions (排放).