Answer: Speed
Explanation: I read it somewhere.
The subjunctive mood is the best.
The subjunctive is rarely used in colloquial English. Totally irrelevant information, but... it is a relic from Latin, where there are many uses for a subjunctive. There is even a special conditional using the subjunctive mood that expresses the exact circumstances you described, which is usually called future less vivid.
Answer:
The waves beside them danced is A
*I wandered lonely as a cloud is D
*They stretched in never-ending line is C
*What wealth the show to me had brought is B
Explanation:
