I________all the cooking for my family，but recently I've  been too busy to do it.  

A．will do

B．do

C．am doing

D．had done

具有口腔黏膜麻醉，宜整片吞服的镇咳药是（）。

A.苯丙哌林

B.喷托维林

C.右美沙芬

D.可待因

E.氨溴索