-Blue can help____when you are angry.-So we'd better wear blue clothes.A.calm you downB.calm down you C.to calm you down D.both A and C为什么选D啊,不是help do sth.么,为什么有to啊

I can （Blue) 求翻译 I can see the blue sky can you pass me the blue i can的歌词BLUE的 blue blue blue Blue blue Blue blue blue blue blue blue blue blue blue