You to the party if youre so busy.A. dont need comeB. not need comingC. neednt comeD. n

问题补充：

You to the party if you e so busy.

A. don need come

B. not need coming

C. needn come

D. need not to come

答案：

A. don need come

B. not need coming

(答案→)C. needn come

D. need not to come

解析：句意：如果你那么忙的话，你不必去公园。need在肯定句中是实意动词，在疑问句和否定句中是情态动词。该句是否定句，故选C。