第93处为什么要加TO?感谢!Iusedtolovescienceclass—allofthem—86．classesbiology,chemistry,geography,physics.IthinkI87．√likedthoseclassesbecauseIfeltthatithelpedme

Question

第93处为什么要加TO?感谢!
I used to love science class—all of them— 86． classes
biology, chemistry, geography, physics. I think I 87． √
liked those classes because I felt that it helped me 88． they
understand what the world works. For example, when 89． how
I was a child, the rain was a mystery（奥秘）.In one 90． the
class, I learned∧it rained. I think science classes 91． why
clear up mysteries. But then there is always more 92． are
mysteries ∧look into. What was my least favourite class? 93． to
That was math. After learn the basics of the subject, 94． learning
nothing else seemed very practically to me. I never 95． practical
saw how I could use it in my daily life.

Answer 1

加to 用作目的状语.