John went to the hospital alone. If he    me about it, I would have gone with him. 

A．tells

B．told

C．should tell

D．had told

患儿，6岁。突发咳喘哮鸣气促，喉间痰鸣，咳痰清稀色白，形寒无汗，面色青灰，张口抬肩。舌苔薄白或白腻，脉浮滑。治疗首选方剂是（）

A.小青龙汤合黑锡丹

B.小青龙汤合三子养亲汤

C.华盖散

D.三拗汤合河车大造丸

E.苏子降气汤