Answer:
Although no one should be downstairs, the residents of the Annex hear "a crash of something falling below." After Peter and a lamp shade fall, making a loud noise upstairs, the residents hear the sound of running feet below.)
(The residents of the Annex fear that their hiding place has been discovered
Can you send me a picture of the page in the story that has that sentence in it and then maybe I will be able to answer you
I'd say that the statement from FDR's speeches that uses parallel structure is C. American ships have been sunk; American airplanes have been destroyed.
Both of these independent clauses use the passive form of the verb - in the first clause, the passive form of the verb <em>to sink </em>is used, and in the second, of the verb <em>to destroy.
</em>A parallel structure means that throughout a sentence, the same form of words is used, and given that here both sentences have passive forms, I'd say C is the correct answer.<em>
</em>