What does Mary think is so incredible and wonderful?A.The speed of light B.The speed of telecommunication C.Astronauts landing on the moon D.The United States 请帮忙给出正确答案和分析,谢谢!
It is desired that his order______ as soon as possible A.will be carried outB.should be carried outC.must be carried outD.would be carried out请帮忙给出正确答案和分析,谢谢!