If you walk outside your door and look up you'll see that the sky is what's up. It made me put more than "the sky." But there ya go. That is what's up.
I dont understand hat do you mean by this i cant do anything unless i have the full report
Both changed and started, the two verbs in this sentence, are regular verbs. regular verbs are verbs whose past tense is simply formed by adding -ed to the end of the word. so change is changed, and start is started. hope this helps (-: