befuddle|befuddled|befuddles

这些数学题太难了，完全把我搞糊涂了。

These math problems are so difficult that they completely ___befuddle me.

这些数学题把我完全搞糊涂了。

These math problems totally ___befuddled me.

这道数学题完全把我搞糊涂了，我一点思路都没有。

This math problem totally ___befuddles me, and I have no idea how to solve it.