1-5 CAABB
6-10 BABCA
11. He is two years younger than his sister
but he is taller than her.
12.
A truck went into the playground covered by snow.
13.
The author wants to express her idea of the book through this article.
14.
I thought it goes without saying that they will agree to that idea.
15.
There have been signs that many factories are encountering a severe situation.