Answer:
C and E are your answers :]
Explanation:
1. Verb : found .....helping :can be
2.Verb :authenticated ......helping:idk
4Verb.:scampered helping : across
5. devising, constantly
6.purchased, could
7. served, after-before
8. seek, must
9.do, after
10. have, been
11. seeing
12. soaping , before
Changing the wallpaper can help enhance the appearance of your computer's desktop, please change the subject to what your asking which is technology.
An abstract noun is a noun that you can't feel, hear, taste, smell, and see. Like hope. A concrete noun is a noun that you CAN feel, hear, taste, smell, and see.
So the abstract noun in this sentence is not choir, but harmony.
hope it helps!
