—Why didn’t you come to my birthday party last night? —I planned to but my parents simply

问题补充：

—Why didn’t you come to my birthday party last night?

—I planned to, but my parents simply not let me out so late at night.

A. could

B. might

C. would

D. should

答案：

A. could

B. might

(答案→)C. would

D. should

解析：

Simply would not 决不，句意：昨天晚上，为什么你没有来我的生日聚会？我打算去的，但是我的父母亲坚决不让我晚上那么晚出去。might 为程度较轻的推测。would 语气更强 could能够 should应该，与句意不符。