单选题 Bob: Why didn"t you come to my party last night?
Bill: I"m sorry, ______. I had to visit my grandmother at the hospital.

A、 I did it
B、 I still remember it
C、 I couldn"t make it
D、 I will come

【正确答案】 C

【答案解析】[解析] 本对话的问题是“昨晚怎么没来参加我的晚会呢?(Why didn"t you come to my party last night?)”。C项“I couldn"t make it”意思为“我来不了”，后面还跟着一个理由“我去医院看我奶奶去了”。其他选项的意思不符合语境要求。