In a discussion, peter shares his opinion about playing in the marching band: "everyone should join the marching band! making music with my friends is a lot of fun." which fact best supports peter's opinion? students who listen to music while completing homework are often distracted. students who play an instrument get better grades than students who do not. marching bands usually include woodwind, brass, and percussion instruments. marching bands were originally part of the military, used to direct troops on the battlefield.

in june, we will have been married for eighteen months. (i am assuming this is what you want? the sentence, as you have presented it, is grammatically incorrect--   you want it corrected, yes? )

the legal limit for the drivers who can drive after consuming any amount of alcohol is 21 years.

explanation:

on november 1, 1996, a "zero tolerance law" was put into effect in the new york state.

according to this zero tolerance law, for people under the age of 21 years, it was illegal to purchase and possess alcohol or to drive after consuming any amount of it.

also, the alcohol involvement rate for the drivers under the age of 21 was roughly twice that of elderly drivers.