Study hard, and ??? will be difficult.

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

___ study in No.4 Middle School? 

A. Did you used to B. Did you use to C. Do you used to D. Do you use to

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

   —I’ll,mum.  

A. and                  B. or                   C. so

       study is hard work, we’d better continue to the end.

   A. Though            B. Unless           C. Because          D. If

Study hard,_______ you will not pass the exam.

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