Here's the letter B worksheet. I understand it's weird to write the entire Precursor sentence at the bottom, so a simpler idea is to just write the sentence in English, just writing all the letters the worksheet is focusing on in precursor. This one, for example, you would write all the B's in precursor. You can also do all the A's in Precursor too, since A was the first worksheet, and you should technically know A by now (if you do these sheets).
When I get a tablet in a few weeks I'll show you what I mean.
B is for Brutter.FirstPreviousNextLast
And remember, if you don't like the way I did the directional arrows within the dotted letter, then don't pay attention to them.
Precursor (c) Naughty Dog
Worksheet (c) Jordan Munn