11. After its routine walk in the woods, the skunk flinched, revealing its long-held suspicion that birds are dirtier than everyone thinks.

Ans.

After its routine walk in the woods, the skunk flinched, revealing its long-held suspicion [that birds are dirtier than everyone thinks].

Relative Clause

What kind of suspicion? the suspicion that birds are dirtier than everyone thinks.

[Score 2pts.: 1 for recognizing the clause and 1 for identifying it correctly]