When does Buck learn to rely on his instinct? When Buck is traveling from his original home
When he experiences the dangers in the Yukon
When he gets to roam around with John Thornton
When Buck needs to pull the sled alone

an interrogative sentence is a type of sentence that asks a question, as opposed to sentences that make a statement, deliver a command, or express an exclamation. interrogative sentences are typically marked by inversion of the subject and predicate; that is, the first verb in a verb phrase appears before the hope i

i'm thinking it would be when compound subjects are joined by or, nor,either-or, neither-nor.

sentence lenght varies according to word choice.you select which word to use and that will require to use other expressions that collocate with the word chosen.sentence length will vary   according to the choice of words you make to express your ideas.