I think I got the correct answers - sunshine, catfish, cheeseburger, pancake, treefrog, doghouse.  There were a couple that might mix up your students.  I was thinking cheesecake and dogwood so if a student came up with those answers, you might want to explain that even though they are compound words, they are not the ones  this worksheet is looking for.  Each picture has to be used once and you have to use all of the words.

Hope that helps.