加偏旁成新字，再组词。

月(    )(           )              直(    )(           )               斤(    )(           )

   (    )(           )                  (    )(           )                  (    )(           )

元(    )(           )              及(    )(           )             (    )(           )

   (    )(           )                  (    )(           )                  (    )(           )

I feel it is Jack as well as his wife that _______ for their son’s bad performance at school.

A．are to blame

B．is to be blamed

C．are to be blamed

D．is to blame