Why is this blog having problems???

I seem to have a problem with a few  posts that do not fit into the page after pasting in.
I can see the whole sentence when I click on  post when I go to "Edit Posts" then when I go to Edit, the end parts get cut off when I put it into edit mode.
I have tried the alignment settings to no avail.

Also the edit "pencil" at the bottom of the post does not show, even though I have clicked and saved to try and get it back again.