Youhand it in at once you may hand it in tomorrow.A. needn'tB. may notC. can'tD. must

问题补充：

Youhand it in at once, you may hand it in tomorrow.

A. needn

B. may not

C. can

D. must not

答案：

(答案→)A. needn

B. may not

C. can

D. must not

解析：可联系答.案.网客服索取。