---Is this your________?
---Yes, she is. [ ]
A. brother
B. sister
C. father
D. son
答案:B
My best friend Lily is _________ with her mother and _________ her with housework.[ ]
A. stays; helps
B. staying helping
C. stay, help
D. staying, helps
SLE晚期肾损害表现为()
A.蛋白尿
B.管型尿
C.血尿
D.尿毒症