you have finished most of the work and you____start working so early tomorrow,you ___come at 9a.m.
问题描述：
you have finished most of the work and you____start working so early tomorrow,you ___come at 9a.m.
A can't,may Bdon't have to,may Cmustn't ,have to Dcouldn't,must
答
答案：B
don't have to 表示“没有必要”.