Answer:
The thought of us residing in utter blindness petrified me! or you could use For a long time he could not utter a word, so that the Rhetor had to repeat his question.
Explanation:
B. Roots
Roots are the smallest meaningful parts of words. For example the root word of aquamarine would be Aqua, which means water. So the root word can also give you a hint on the meaning of the word.
Hope this helps :)
