"They flock together like sheep instead of scattering, and even the wounded are shot down like hares by the airmen." What do the similes flock together like sheep and the wounded are shot down like hares suggest about the recruits?

The simile " they flock together like sheep " simply means that, the recruits moves together in groups  instead of moving separately during the war. This group movement exposes them to harms way leading the airmen to inflict maximum damage on them.

On the other-hand, "the wounded are shot down like hares" suggest that, those who are wounded recruits still clusters together leading to the airmen to complete the task of killing them all.

Explanation:

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 .

the answer is b