问题补充：
—Shall I open the window to let some fresh air in?.
—No, .
A. Id rather not
B. Id rather you not
C. Id rather you didn
D. Id like not to
答案：
A. Id rather not
B. Id rather you not
(答案→)C. Id rather you didn
D. Id like not to
解析：本题考查情景交际用语。Id rather not.是Id rather not open the window.的省略，意思是“我不愿开窗子”，open的动作由“我”来做，不符合语境。Id rather后不跟you not这种形式，B项语法不正确。Id rather后可以跟从句，从句中的谓语动词用过去时态，所以C项为正确答案，答语用的省略形式。Id like not to.与A项意思差不多。
