1. The university authorities did not approve the regulation, nor did they make any explanation / nor did they give the reason for doing so / and didn’t explain the reasons either (也没有解释为什么).

2. Jane is tired of dealing with customer complaints and wishes that she could be assigned to another job / could be assigned to do another job (能被分配做另一项工作).

3. John rescued the drowning child at the risk of his own life (冒着自己生命危险).

4. George called his boss from the airport but it was his assistant who answered / picked up the phone / turned out that his assistant answered / picked up the phone / turned out to be his assistant (接电话的却是他的助手).

5. Although he was interested in philosophy, his father persuaded him into / talked him into (他的父亲说服他) majoring in law.