Aloud , should be "allowed" and maybe the, maybe is should be changed to "this".
#3 out of all of them. It has to be the best
The answer is D: The band trip is almost full, so if the color guard members want to go, they will need to sign up soon.
Their is no man in the bake sale sentence. Hence, him. Same for the other sentences.
Well metal detectors can help to save a life in the event that someone has a weapon or is armed, the dectector can sense the metal in a gurn, for example, which can sve lives because if that person meant harm on others, the gun can be detected before somethinf terrible happens. Hope this helps!