【-IthinkI'llwearjeanstotheparty？-That'snotagoodidea．Ifyoudo，theteacheryouin．（）A.won'tletB.doesn'tletC.didn'tlet】

　　-I think I'll wear jeans to the party？

　　-That's not a good idea．If you do，the teacher you in．（）

　　A.won't let

　　B.doesn't let

　　C.didn't let