The volunteers lifted the boxes. A. Sentence
B. Fragment

Rusted and broken.
A. Sentence
B. Fragment

The dog barks loudly at strangers.
A. Sentence
B. Fragment

A.

B.

A.

Explanation:

The volunteers lifted the boxes.

it gives who and what they did

Rusted and broken.

what was rusted and broken it doesnt give a lot of info

The dog barks loudly at strangers.

it said what the dogs did

modal adverbs are used to modify specific verbs that consist of a linking verb (verb of being) and sometimes another verb. examples of modal verbs include can, could, may, might, must, shall, should, will and would.

modal auxiliary. an auxiliary verb characteristically used with other verbs to express mood, aspect, or tense. in english, the most common modal auxiliaries are can, could, may, might, must, ought, shall, should, will, and would. also called modal .

a structured set of data held in a computer, especially one that is accessible in various ways. here is an example

hope this