Which is a complex sentence? a) examples of intervention are summer school, after school, saturday classes, special classes during the school day, and tutoring. b) many americans struggle with different aspects of literacy. c) students of all ages are casting books, magazines, and homework aside in frustration. d) if a student struggles with literary comprehension, he or she may require expert intervention.

D)If a student struggles with literary comprehension, he or she may require expert intervention

first of paragraph? and second of statment?

don't submit such stupid questions!

active voice: my father cut the tree.

passive voice: the tree was cut by my father.

active voice: people buy newspapers every day.

passive voice: newspapers are bought (by people) every day.

active voice: people have been using movies as political propaganda since world war ii.

passive voice: movies have been used as political propaganda since world war ii.

active voice: donna gave me my birthday present.

passive voice: i was given my birthday present (by donna). / my birthday present was given to me (by donna).

active voice: mom will leave the keys on the counter.

passive voice: the keys will be left (by mom) on the counter.

the words in parentheses are the agent of the passive voice and can be omitted when obvious, generic, or simply unnecessary.