The question is about filling the blank with the best answer. (with the word given in the parentheses)
1. An eagle flies ........... a sparrow (high)
a. Higher Than
b. More Highly than
2. Jaguars run ........... cats. (fast)
a. Fast than
b. Faster than
My question is about using adjective or adverb. I usually heard that the answer for 1 is a and 2 is b. But in a book I found that it answered b for 1 and a for 2. Now what is the correct answer?