4 strings is not apart of a concert band
A. Peter
Peter admitted some blame for Edmund's treachery
Answer: Within the nucleus of an atom, each proton and neutron approximately have the same mass.
The correctly used subjunctive mood in this sentence would be: My friend wished I were there to hear the speech.
Supporting material would include
Why: partying, they insisted on driving
What: crashed into a tree
When: middle of the night