风心病患者近来低热，有助于诊断风湿活动的体征是（）

A.皮肤黏膜瘀点

B.皮肤环形红斑

C.蛋白尿

D.多浆膜炎

E.溶血性贫血

— Would you like ______ with me this Sunday? 

— Sorry, I have something ______. [ ]

A. going shopping; to do

B. to go shopping; to do

C. going shopping; doing

D. to go shopping; doing