I. Rewrite these sentences, using IN, AT , UNDER, or ON. 1. Keith certainly can’t be held responsible for the accident. …………………………………………………………………………………… 2. The children themselves are not in any way to blame for the disaster. ………………………………………………………………………………… 3.The existence of extraterrestrial is not confirmed by the report. ……………………………………………………………………………………… 4. I was never shown how to operate the machinery. …………………………………………………………………………………… 5. He never suspected that she was a witch. …………………………………………………………………………………… 6. There has never been a time when the English language was not in a state of change. …………………………………………………………………………………... 7. Miss Weaver will not be offered the job under any circumstances. …………………………………………………………………………………… 8. You should not send money to us by post under any circumstances. …………………………………………………………………………………… 9.We can’t exchange tickets in any circumstances. …………………………………………………………………………………… 10.I won’t go out that way to visit him again on my account! ……………………………………………………………………………………