You deplore the demonstrations taking place in Birmingham. […But] it is even more unfortunate that the city's white power structure left the Negro community with no alternative. What are King’s ideas about why these demonstrations are happening at all? How does this add to his rebuttal of his critic’s claims?

Which sentence correctly sequences the underlined verbs? we will not receive the final pieces that we needed to complete the collection. we will not receive the final pieces that we had needed to complete the collection. we have not received the final pieces that we will need to complete the collection. we had not received the final pieces that we need to complete the collection.