I really don’t think Rose will be upset but I will go and see her in case she.A. isB. doe

问题补充：

I really don’t think Rose will be upset, but I will go and see her in case she.

A. is

B. does

C. will be

D. has been

答案：

(答案→)A. is

B. does

C. will be

D. has been

解析：这是in case引起的状语从句，主句用了将来时，所以从句用一般现在时表示将来。