After the Jets tried to assault Anita, she told them that Maria had been killed. Tony heard this and went out, yelling for Maria's killer to shot him and was shot to death.
Music or sound is something that can be heard but not seen.
It is correct if it is what you intend to say. If you mean that your friend heard something, and then related it to you, you can say that it was heard by a friend. Your friend heard it. If you mean that YOU heard something, and you heard it because your friend told you, then you heard it from a friend.
Because bieber is not a common last name and beaver is something people have heard of
A wireless system is a device that does not require any wires to go online. It is quite common these days and I am surprised that you have never heard of it.
There is not really an answer for why you are getting it, but when you get it it feel like you have done, seen, or heard something before. It is very common and as much as i know it can not harm you.
heard
Heard means you hear something in past tense.
The common part is that it is heard.
Common songs as the judges have heard them before and are less likely to be impressed. Pick something not as well known that you are good at.
Audible.
Moose do not travel in heards, they tend to travel alone. Sometimes you may see a couple moose together eating or something, but that's not very common.