Which word in the sentence is the indirect object?
Our cousins sent us pictures of their visit to the beach last summer.
A.
beach
B.
us
C.
summer
D.
their

Us. You can't use a word in a prep. phrase and call it an indirect object. Visit, beach, and summer are eliminated. The cousins sent you the picture, so pic. is eliminated. The only noun/pronoun left is us.