Which issue should you correct during the proofreading stage of the writing process?

The balance includes both the fees for service and the shipping charges. is this sentence incomplete or complete?

Ican’t find this question here can y’all tell me the awnser?

Plzz me between what two words does the ellipses appear in the following sentence? "the his breakfast." "the" and "cat" "cat" and "ate" "ate" and "his" "his" and "breakfast"