Answer: I do not know if this is a multiple choice question or not, but I would contend that the blue flower is a reference to Neruda's country, Chile.
Explanation: The color blue is part of the flag of Chile. It symbolises, in part, the Pacific Ocean, and I believe that in these lines of his famous poem, the Chilean poet Pablo Neruda was referring to his beloved country, which he had had to abandon due to his political views. He is telling his lover that he wants her laughter like the flower he was waiting for, "the blue flower, the rose of my echoing country." He cannot have his country, but his lover's laughter will bring him the comfort that he needs in these difficult days away from his homeland.
The correct answer present and future social conditions. The two concepts that H. G. Wells connect in this excerpt from The Time machine are the present and future social conditions. The present and the future social conditions have a lot of differences in which they are usually far from each other.
