What comes next in the sequence?
\text{A, C, E, G, \_\_\_}}

Let's convert the given letters into their standard numerical positions in the English alphabet ($\text{A}=1,\text{B}=2,\dots$):
* $\text{A}=1$
* $\text{C}=3$
* $\text{E}=5$
* $\text{G}=7$

Looking at the differences between consecutive terms:

* $3-1=+2$
* $5-3=+2$
* $7-5=+2$

The pattern is adding $2$ to the previous position value (consecutive odd numbers). Following this pattern, the next position value will be:

$$7+2=9$$

The $9^{\text{th}}$ letter of the alphabet is $\text{I}$.