Which sentence contains an unnecessary hyphen?

Which of the following students achieve a high score on a standardized test? a.being able to read quickly b.having strong communication skills c. being able to understand test questions. d. being able to write quickly

Which type of presentation aid is depicted in the image above? a. object/topic itself b. illustration c. chart d. technology

How does bill safire depict mankind in his proposed speech? 1.adventurous and greedy 2.adventurous and determined 3.daring and invasive 4.timid and wary of loss