Study hard, and ??? will be difficult.

A. everything????????????? ????????????? B. anything????????????? ????????????? C. nothing????????????? ????????????? ????????????? D. something

— Study hard, ________you won’t be able to pass the exam.

   —I’ll,mum.  

A. and                  B. or                   C. so

Study hard,_______ you will not pass the exam.

     A. and      B. or      C. but      D. so

—Study hard, ______ you won’t pass the exam.  —I see, Mum.

A. or                                                            B. and                                                C. but