“Let’s go to the library shall we?” “”A. NO I can'tB. Yes I willC. Yes thank youD. NO

问题补充：

“Let’s go to the library, shall we?” “”

A. NO, I can

B. Yes, I will

C. Yes, thank you

D. NO, we’d better not

答案：

A. NO, I can

B. Yes, I will

C. Yes, thank you

(答案→)D. NO, we’d better not

解析：A B C都不能答shall we.此外D的语气比较婉转客气.