I am still confused by the use of 'happen" and 'occur'. Are the following sentences acceptable?<br/><br/>(1) A funny thing happened.<br/><br/>(2) A funny thing occured.<br/><br/>(3) Last night, a fire happened in my neighborhood.<br/><br/>(4) Last night, a fire occured in my neighborhood.<br/><br/>(5) Last night, there was a fire in my neighborhood.<br/><br/>(6) This morning, an earthquake happened in the island.<br/><br/>(7) This morning, an earthquake occured in the island. <br/><br/>(8) Eathquakes occur frequently in this area.