问题补充：
-- Ann is in hospital.
-- Oh, really? I know. I go and visit her.
A. didn’t; am going to
B. don’t; would
C. don’t; will
D. didn ; will
答案：
A. didn’t; am going to
B. don’t; would
C. don’t; will
(答案→)D. didn ; will
解析：考查时态和交际用语说话者用I _didn _ know，是表示现在之前他不知道。而他现在说要去看他当然是将要去看他用“will.
