He said he had seen that film ___.

.He might have_____ his idea about the art at the exhibition much better if he had planned what he wanted to say.

You may _____ studying English, but in the long run, you’ll be glad that you did.

When we finally ______ to get all the work done, we were so exhausted that we simply felt like lying down and having a good sleep. 

This is an illness that can          total blindness if it is left untreated.