Answer: A
The past perfect progressive emphasizes the duration of a past action before another action happened. For example, “I had been smoking for 10 years before I quit.” You form the past perfect progressive by using had been followed by an –ing verb.
Answer: To fit his meter and rhyme scheme.
The correct answer is ( A )
This article is about an invention called ReWalk uses robotic pants with sensors and motors to allow people in wheelchairs to walk. The other statements (B), (C) and (D) are secondary ideas which expand the main concept or thesis statement.
My favourite idea would be the creativity booklet as it would help younger kids learn