rereading
I went to a fluency workshop not long ago, and the best thing I saw was partner reading. They have to be trained how to do it, though. One partner reads a passage to another. If they miss a word, the partner tells them the word, the reader repeats it, then rereads the whole sentence 2 times. It sounds monotonous, but it really works! Let them switch reading every 5 minutes and it helps to break it up some.