The correct sentence is If I hadn’t gone on vacation to Washington, I wouldn’t have met Sam. It is a third conditional sentence. It refers to a situation that happened in the past. It means that the person went on vacation and met Sam
they might become dry and lifeless
explanation: Because if you postpone your dreams and you don't work to acheive them as soon as you think of them, then they will become lifeless, because you aren't making them a reality.
The answer is and. The first sentence can read Galicia has a Celtic heritage. The second sentence is One of it’s traditional instrument is the bagpipe. You could even change the last one to read, The bagpipe is one of the traditional instruments.
The seventh letter in the alphabet is G!