President Hu Jintao urged that every effort to rescue and treat the injured when the earthquake happened in Sichuan this year．
A. is made
B. must be made
C. should make
D. be made
网友回答
A. is made
B. must be made
C. should make
(答案→)D. be made
解析：表命令，要求，警告，允诺等语气的句子中，从句应用虚拟语气。