1. There was an explosion and the whole sky <u>lit up.</u><br/><br/>2. The night sky <u>was lit up</u> with fireworks.<br/><br/>Is the underlined part in sentence 1 used as a passive phrase as in 2? or it is intransive?<br/><br/>If so, does it make sense if saying, <b>There was an explosion and the whole sky was lit up.</b>