I promised to get there before 5 o’clock, but now the rain is pouring down. They ______ for me impatiently.

A．may wait

B．ought to wait

C．could wait

D．must be waiting

临床上见：身热肢厥，神昏谵语，抽搐痉挛，舌质鲜绛，脉细数或弦数者，首选的中成药是（）

A.安宫牛黄丸

B.至宝丹

C.紫雪丹

D.苏合香丸