Question

Which of these are complete sentences? Check all that apply.

Answer 1

I'm pretty sure that:
The blasts of arctic air caused the tops of the trees to wave back and forth. ,
He and Sonia named the squirrel Rocky. And:
She caught her first fish that day, are all complete sentences. 

Hope I helped! :D

Answer 2

The second, fourth and fifth ones are complete when used in a paragraph. If they are not in a paragraph that supports the sentence, the fourth one is the only complete one.