Question

Which group of words is a sentence fragment?

A.
When a wolf wags only the tip of its tail.

B.
Wolves will eat rabbits, mice, and even fish if they have to.

C.
When a wolf is happy, it wags its whole tail.

D.
Though some wolves are loners, others move in packs.

Answer 1

D

Answer 2

Try saying them all to yourself, and you'll see which one makes the most sense. It's A, because it doesn't have a proper verb. When a wolf wags only the tip of its tail.... what happens? that's what you would ask yourself in order to figure out that it is the sentence fragment.