敛肺平喘，收涩止带（）
A.桑白皮
B.苏子
C.苹苈子
D.紫菀
E.白果
参考答案：E
Frank，you look worried．Anything wrong?
Well，I ______a test and I’m waiting for the result．
A．will take
B．took
C．am taking
D．take
