The author's technique in building the suspense in the excerpt is that the author quickened the pace of the story through changing the words in each sentences as if it is in a thrilling mood. Through this, the author affected the reader's emotions also due to the pace of the story.
Answer: adding details to describe Raul’s behavior
Explanation:
The text mentions that Cara tried to remain calm in order to be able to see things from Raul's point of view yet Raul's behavior made that hard to do.
Carla should add details describing Raul's behavior so that the readers can know exactly what it was that Raul was doing that made it so hard for Carla to remain calm. This would paint a clearer picture of the situation to readers.
Standard for means it is written in words: four hundred ans fifty would be the answer.
One strategy you can use to determine the meanings of unknown words and phrases is to look at the context clues. Context clues might be something like a picture, words or phrases you already know, using what you know about the text already.
Hope this helps!