题目内容：

 

1.It’s hard of him to move the heavy box._______

A      B       C           D

2.He’s owned the train and railway set since he fourth birthday.___________

A    B                           C   D

3.I have bought the camera for three years?______________

A    B            C    D

4.Although he has not played with his old toys for a long time, but he still wanted to keep them.______

A      B                              C                D