将下列句子中错误找出并改正。

( ) 1. Did you finished your work two hours ago?                                       ____________ 

             A               B      C                     D

( ) 2. This sweater is very nice. You can  try on its.                                    ____________

                    A               B                  C         D

( ) 3. Jim sent  an e-mail to she  yesterday.                                                ____________ 

                    A          B          C         D 

( ) 4. Was your brother a basketball player three years ago?  No, he didn't.   ____________

               A                                  B                      C                         D

( ) 5. There are  some bookshops on the two floor of the mall.                   _____________

                      A               B                      C                  D