I think a would be the best answer for the preposition
It is true that pretest may allow you to be exempt from certain assignments.
The main purpose of expository text is to inform or describe what the story or book is about, so when the student reads they are understanding what is being read better. They can use this technique forever when reading and comprehening.
Answer:
D.
Include labeled illustrations of a flightless bird and a flying bird so readers understand which parts the flightless bird is missing that would allow it to fly.
Explanation: